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1. design
From discovering design elements to creating concepts and executing designs, we tailor every product to your brand’s unique needs. Starting with a prototype, our boundary-pushing designers breathe artistry, soul, and storytelling into each creation, transforming them into an enduring source of brand energy and competitive advantage.
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2. Carving molds
JIEJU utilizes globally leading machinery and advanced mold-making techniques. With dedicated craftsmanship, we meticulously progress from copper electrode engraving to EDM (electrical discharge machining for steel molds). We invest more time and processes than the industry standard, carefully crafting each mold.
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3. Tooling of the mold
Utilizing an end-milled gate design, the mold is filled by injecting high-temperature molten metal through this inlet to begin casting. JIEJU’s master craftsmen leverage extensive experience and refined skill to ensure superior quality.
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4. Mold Finishing & Assembly
The world’s top craftsmen use their skilled techniques and sincere attitude to polish and remove the spark patterns on the carved JIEJU craftsmen skillfully and meticulously polish the engraved molds to remove EDM marks and achieve a mirror-smooth finish. Through manual operations, including mold separation, runner cutting, and steel hardening, blending experience with innovation, the mold is finally assembled., make the molds smooth, and then use a series of manual operations such as mold opening, runner opening, and steel mold hardening to finally assemble the molds, combining experience and innovation.
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5. Die Casting
In JIEJU’s die-casting workshop, automated die-casting machines and robotic arms operate efficiently. At 390℃, molten or semi-molten metal is injected under high pressure into the mold cavity, solidifying under pressure to form precise castings. Compared to other casting methods, JIEJU’s die-cast products feature smoother surfaces and superior dimensional consistency.
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6. polishing
JIEJU products are distinguished by their beautiful luster, lightness, and strength. Craftsmen meticulously hand-select quality work pieces and manually grind all edges smooth. Using oil stones, grinding wheels, hemp wheels, and cloth wheels, they polish each piece to eliminate surface roughness, achieving JIEJU’s signature quality.
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7. Finishing
Flash removal, also known as trimming, involves refining internal contours and parting lines. This critical high-end process ensures every casting has uniform base thickness, aesthetically pleasing contours, and natural flow lines. All JIEJU products strictly adhere to premium industry standards.
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8. Electroplating
JIEJU’s precious metal electroplating facility leverages decades of expertise to continuously refine techniques. We’ve developed an effective surface protection system that significantly controls brass tarnishing, dramatically enhancing product stability and yield rates.
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9. Oil seal
Sealing prevents electroplated layers from oxidizing, tarnishing, or scratching. JIEJU employs two methods:
Lacquer (Physical Protection): A volatile anti-rust oil forms an isolating film on the metal surface.
Electroscopes (Electrochemical Protection): An electric field deposits a protective resin layer.
Despite increased labor, JIEJU seals each component individually, ensuring comprehensive protection for every part.
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10. assay
JIEJU maintains a dedicated laboratory conducting specialized tests, including acid resistance, abrasion resistance, CASS test, salt spray test, and artificial sweat test. This ensures all products meet rigorous chemical testing standards, guaranteeing quality compliance.
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11. assembly
Products are typically assembled from multiple components. Following assembly blueprints and strict technical specifications, JIEJU craftsmen meticulously join parts into finished products. Utilizing dozens of specialized assembly techniques and machinery, supported by expert technicians, we conduct thorough adjustments, inspections, and trials to ensure optimal structural integrity.
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12. Testing
JIEJU employs dedicated physical testing equipment. All products undergo rigorous inspection using professional instruments, including pull strength, hardness, friction, abrasion, and impact tests to verify durability and quality.
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13. Q C
JIEJU implements stringent QC protocols. Products undergo multi-layered inspection and screening, culminating in final approval via meticulous visual examination and tactile inspection by trained personnel. This maximizes defect detection before products leave our facility.
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14. Film
Focused on premium products, JIEJU applies protective film after QC. This safeguards against dust, fogging, scratches, and friction during handling. Each item is individually filmed to prevent damage from contact and eliminate handling marks during final packaging.
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15. Package
To ensure optimal protection during transit against abrasion, impact, and compression – and to facilitate storage, shipping, receiving, inventory, and sales – JIEJU employs a three-tier packaging system:
Unit Packaging: Individual item protection.
Inner Packaging: Grouping units securely.
Master Packaging: Outer carton for bulk handling.
Labels display contents, brand logo, product grade, manufacturer, and production date.
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1. Design
From discovering design elements to creating concepts and executing designs, our process is tailored to each brand’s unique needs. Every product begins as a prototype, meticulously crafted by JIEJU’s designers to blend artistry with purpose. We breathe life into each creation, transforming it into a storytelling asset—an enduring source of brand identity and competitive advantage.
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2. Material Selection
Whether it’s cowhide, sheepskin, crocodile leather, or synthetic leather, every hide selected by JIEJU is top-quality full-grain leather, chosen for its texture, luster, and durability.
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3. Carving molds
We use two types of molds:
Blade Molds: For cutting leather with accuracy.
Pressure Molds: For embossing, hot stamping, and creating textures (e.g., logos, text, stitch guides).
Each mold is meticulously crafted by JIEJU’s artisans, embodying time-honed expertise.
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4. Cutting
Our skilled artisans handpick the most lustrous and supple sections of each hide, ensuring finished products withstand the test of time.
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5. Scraping
Based on the leather thickness and product requirements, artisans adjust skiving depth and width to guarantee uniformity, smoothness, and ripple-free edges.
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6. Lamination
Natural leather’s fibrous underside can feel coarse. JIEJU refines it with sealing coatings or backing materials for a polished, consistent appearance.
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7. Cutting shape
Through decades of practice, artisans continuously refine blade molds, hole alignment, and edge trimming to eliminate imperfections and achieve precision.
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8. Laser
Our fully automated laser systems (featuring imported lenses and anti-contamination mechanisms) excel in:
Laser Cutting: Ultra-fine precision.
Laser Engraving: Detailed patterns with superior stability
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9. Pattern craft
JIEJU’s mature techniques—hot stamping, embossing, and screen printing—ensure flawless branding and texture effects.
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10. Sewing stitch
Every stitch follows strict high-end standards: spacing, density, and direction. We also offer decorative stitching (e.g., floral patterns, text)
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11. Edge Oiling
To ensure smooth edges on leather products, JIEJU’s edge oiling process consists of the following steps: planing, ironing, trimming, initial oiling, grinding, re-oiling, sanding, final oiling, and polishing.
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Q C
Multi-layered inspections—culminating in manual visual and tactile checks—eliminate defects before products leave our facility.
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13. Film
JIEJU specializes in high-end products. To ensure dust, fog, scratch, and friction resistance, all items undergo a film coating process after quality inspection. Additionally, individual products are protected from collision damage, preventing surface marks in the final binding.
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14. Package
Each item undergoes triple-layer packaging (individual, inner, outer) with labeled details:
Brand logo
Quality grade
Manufacturer & production date
This safeguards against damage during transit and streamlines inventory management.
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1-1. Blank Production: Horn Buttons
Jieju uses high-quality natural buffalo horns as raw materials, which are cut and processed into horn button blanks through special technology.
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1-2. Blank Production: Resin Buttons
Unsaturated polyester resin is mixed with curing agents, accelerators, and pigments to form rods or sheets.
Rod blanks: Air-dried and precision-cut.
Sheet blanks: Air-dried and pressed into plates.
JIEJU’s resin blanks are tough, vibrant in color, and built for durability.
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1-3. Blank Production: Shell Buttons
Material selection: Natural shells are chosen based on size and requirements.
Process:
①. Shells are punched into rough blanks.
②. Each blank is ground flat on a wheel.
③. The center is recessed to create a concave shape.
JIEJU’s semi-handmade process preserves the shell’s natural luster.
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1-4. Blank Production: Nut Buttons
Sourced from Ecuadorean ivory palm nuts (renowned for their ivory-like hardness and hue), these blanks are crafted through:
Peeling → Slicing → Drilling → Sizing
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1-5. Blank Production: Urea Buttons
Made from urea-formaldehyde resin (also called “urea” or “electroplated jade buttons”), these blanks undergo lamination and stamping. Compared to standard resin, they offer superior:
Acid resistance, Mechanical strength, Heat tolerance.
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2. Blank Selection
Every blank undergoes rigorous inspection by JIEJU artisans to eliminate defects before advancing to production.
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3. Button Shaping (Turning & Molding)
Multi-head automatic lathes shape blanks to match designs, including:
①Shank holes
②Edge profiles
③Front/back curvature.
Engraving: Our machines can directly etch logos or patterns during production.
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4. Special Treatments (Laser, Cutting, Coating, Painting)
Post-turning processes meet JIEJU’s high standards for finish and functionality.
Note: Horn buttons require pre-polishing and drying before treatment.
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5-1. Polishing: Rough Grinding
Buttons are tumbled in water-filled barrels for 8 hours to remove machining marks and smooth surfaces.
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5-2. Polishing: Fine Buffing
For high-gloss finishes:
Buttons are polished in wax and bamboo-chip-filled barrels for 12 hours.
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6.Drying
Heat drying (resin/urea/shell buttons) removes moisture efficiently.
Natural air drying (horn buttons):
①7 days (normal weather)
②10–15 days (humid/cold conditions).
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7. Quality Inspection
JIEJU maintains stringent standards for all non-metal buttons, including:
①Color consistency
②Pattern accuracy
③Model specifications
④Precise shank hole alignment and symmetry
⑤Uniform stitch spacing and hole size
⑥Surface gloss level
Each button undergoes rigorous inspection to ensure it meets our uncompromising quality standards before leaving our facility.
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8. Film
JIEJU specializes in high-end products. To ensure dust, fog, scratch, and friction resistance, all items undergo a film coating process after quality inspection. Additionally, individual products are protected from collision damage, preventing surface marks in the final binding.
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9. Packaging
Each button receives triple-layer protection:
① Individual wrapping
② Inner packaging
③ Outer cartons
Labels include: Brand logo / Quality grade / Manufacturer details / Production date
JIEJU insists on using environmentally friendly materials to develop products and controlling water pollution
We create with conscience and craft with care. By choosing eco-friendly materials, reducing water pollution, and integrating automated precision, we deliver impeccable quality rooted in sustainable values.
Every detail undergoes rigorous validation—from visual checks to abrasion resistance, X-ray coating measurement, and spectrophotometric color control. We also offer customized testing for heat and moisture resistance, complying with leather, colorfastness, and China’s eco-standard requirements.
Explore an extensive palette of premium finishes: luxurious precious metal platings in glossy, matte, or vintage effects, enhanced with cutting-edge PVD, bonded flanges, and protective varnishes. We provide the industry’s most exceptional and diverse surface treatment options—designed to elevate your brand.
Our dedicated lab and R&D team specialize in tailor-made surface solutions—rapidly developed and fully compatible with standard finishes in both physical performance and chemical properties.
To achieve flawless surfaces, expert pre-treatment is key. We deliver every imaginable finish—from vintage antique to high-gloss mirror polish—using advanced tumble polishing, skilled hand polishing, and precise aging techniques. Whatever look you envision, we have the craftsmanship and technology to bring it to life with confidence.
ELECTROPLATING IS WHERE ARTISTRY MEETS ADVANCED CHEMISTRY
Our state-of-the-art precious metal plating facility combines high automation with deep commitment to sustainability.
By eliminating manual handling in the plating process, we achieve precision at every step. Component processing is measured in seconds, while automated systems ensure uniform coating thickness across entire batches. We also purify and recycle wastewater, removing environmental impact—allowing us to deliver guaranteed high quality in alignment with our core value: sustainability
Beyond assurance in quality and eco-responsibility, we offer the industry’s broadest selection of finishes—from classic copper, bronze, and brass to premium gold, silver, palladium, and ruthenium. Whether through rack or barrel plating, we handle components of all sizes and excel at crafting distinctive finishes with antique effects or custom color matches.
For applications requiring precise metallic colors, PVD (Physical Vapor Deposition) offers the ideal solution. We utilize both cathodic arc and magnetron sputtering technologies to deliver maximum flexibility in material selection and performance.
Cathodic arc PVD is ideally suited for stainless steel, zinc alloy, and brass components. It provides exceptional wear resistance and hardness, making it the preferred process for high-stress applications such as handbag base nails and spring hooks.
Magnetron sputtering PVD, on the other hand, is compatible with virtually all materials—including those unsuitable for conventional electroplating. It can impart a striking metallic finish to natural materials or plastics, delivering the look of metal while preserving the lightweight properties of the substrate.
Furthermore, both PVD technologies significantly expand our range of available finishes with unique options including blended tones, rainbow effects, metallic blue, and deep black—enabling truly custom aesthetic solutions.
WHERE COLOR MEETS CHARACTER – VARNISH MAKES IT POSSIBLE.
We deliver finishes in any color and texture: high-gloss, matte, semi-matt, or soft-touch, all achieved through advanced spray or electrophoresis varnishing.
Spray varnishing offers versatile, consistent coverage for most applications, while electrophoresis ensures flawless results on hard-to-reach areas such as chains and snap hooks.
Spray varnishing offers versatile, consistent coverage for most applications, while electrophoresis ensures flawless results on hard-to-reach areas such as chains and snap hooks.
WE LEAD THE WAY IN PRECISION BONDING OF ENAMEL, RHINESTONES, PEARLS, AND JADE FOR HIGH-END FASHION ACCESSORIES
Our specialized processes deliver exquisite craftsmanship and expand the possibilities for unique and luxurious finishing touches.
From enamel application to the meticulous setting or bonding of gemstones, pearls, rhinestones, and loose diamonds, our post-processing team combines art with reliability. We use high-performance two-component resin adhesives, ensuring lasting adhesion and resilience.
With over 20 years of expertise and partnerships with top luxury fashion houses, J&J has mastered the art and science of decorative bonding. Our skilled techniques—applied to both precious and non-precious metals—allow us to meet the sophisticated and varied demands of today’s market.
Craftsmanship, service, and sustainability are at the core of our values, reflected in every material we select and every process we perfect.
Precision & Excellence in Material Selection
With decades of expertise in both artisan and industrial fields, JIEJU meticulously sources high-performance materials to deliver optimal solutions tailored to client needs.
Metal Components
We specialize in brass, zinc alloy, aluminum, and steel, employing advanced techniques such as die casting, micro casting, molding, cutting, welding, and laser engraving to achieve superior finishes.
Premium Leather Accents
Our leather products feature top-tier hides (or client-supplied semi-finished materials), enhanced with embroidery, embossing, beading, or inlay techniques, elevating design with timeless craftsmanship for global acclaim and repeat demand.
Like stainless steel and aluminum, brass is formed through a combination of cold and hot working technologies, ensuring precision and versatility for a wide range of applications.
Cold Working Techniques
In our cold processing center, we specialize in sheet/ wire cutting, bending, and CNC turning/milling. Brass is ideal for snaps, jeans buttons, and hooks.
Turning: High-efficiency for mass-produced round components.
Milling: Flexible yet lower throughput, preferred for small batches or premium items (e.g., leather goods, jewelry).
Hot Working Techniques
Casting: Optimized for low-volume, intricate designs.
Forging: Ideal for creating classic shapes at scale, this process is widely used in belt buckles and leather accessories.
Precision & Versatility
Combining zinc, aluminum, magnesium, and copper, our zinc alloy delivers exceptional ductility, stability, and moldability—ideal for high-performance metal trims and luxury components.
Through precision engineering, we transform zinc alloy via:
Die-casting & Micro-casting: Cost-efficient mass production with fine detail.
Molding/Cutting/Welding: Tailored shaping for structural integrity.
Laser Engraving & Etching: Premium finishes for decorative accents.
Key Applications:
Fashion hardware, high-end accessories, and functional adornments balance durability with refined aesthetics.
Durability Meets Elegance
Renowned for its superior mechanical properties, corrosion resistance, and oxidation stability, stainless steel is a premium choice for luxury metal accessories.
Our stainless steel components feature:
Vacuum Plating (PVD): A water-based electroplating process that delivers brilliant, fade-resistant finishes.
High-Gloss Surfaces: Maintains lasting luster for enduring quality.
Why Luxury Brands Choose Stainless Steel:
- Exceptional durability for daily wear
- Hypoallergenic properties for sensitive skin
- Timeless aesthetic appeal
Key Applications:
High-end fashion hardware, jewelry findings, and luxury accessories require both strength and refined beauty.
Lightweight & Versatile
Valued for its lightweight, excellent ductility, and corrosion resistance, aluminum is a preferred material for functional yet fashionable metal accessories.
Key Advantages:
Lightweight Strength: Ideal for larger fashion accessories requiring durability without bulk
Superior Workability: Easily shaped into diverse designs while maintaining structural integrity
Natural Corrosion Resistance: Ensures long-lasting wear and minimal maintenance
Primary Application:
Optimized for substantial fashion hardware and statement accessories where weight reduction matters.
Sustainable alternatives
We work with the finest genuine and eco-friendly leathers, while offering flexibilityforclient-supplied or third-party materials, transforming them into exceptional fashionaccents through masterful craftsmanship.
Our Leather Expertise:
Material Selection: Stocking premium-grade leathers and sustainable alternatives Custom Solutions: Compatible with client-provided leathers or semi-finished goods
Artisan Techniques:
• Embroidery & Embossing /• Beading & Inlay Work /• Precision Bonding &Assembly
Why Clients Choose Us:
Design Versatility: Unconventional combinations that elevate product value Technical Excellence: Flawless integration of hardware with leather substrates Global Appeal: Signature finishes that drive repeat orders from luxury markets
Craftsmanship, service, and sustainability are at the core of our values, reflectedineverymaterial we select and every process we perfect.
Precision & Excellence in Material Selection
With decades of expertise in both artisan and industrial fields, JIEJU meticulouslysourceshigh-performance materials to deliver optimal solutions tailored to client needs.
Metal Components
We specialize in brass, zinc alloy, aluminum, and steel, employing advanced techniques such as die casting, micro casting, molding, cutting, welding, and laser engraving to achieve superior finishes.
Premium Leather Accents
Our leather products feature top-tier hides (or client-supplied semi-finishedmaterials), enhanced with embroidery, embossing, beading, or inlay techniques, elevating designwithtimeless craftsmanship for global acclaim and repeat demand.
Like stainless steel and aluminum, brass is formedthroughacombination of cold and hot working technologies, ensuringprecision and versatility for a wide range of applications.
Cold Working Techniques
In our cold processing center, we specialize in sheet/ wire cutting, bending, andCNCturning/milling. Brass is ideal for snaps, jeans buttons, and hooks.
Turning: High-efficiency for mass-produced round components.
Milling: Flexible yet lower throughput, preferred for small batches or premium items (e.g., leather goods, jewelry).
Hot Working Techniques
Casting: Optimized for low-volume, intricate designs.
Forging: Ideal for creating classic shapes at scale, this process is widely used inbelt bucklesand leather accessories.
Precision & Versatility
Combining zinc, aluminum, magnesium, and copper, our zinc alloy delivers exceptional ductility, stability, and moldability—ideal for high-performance metal trims and luxury components.
Through precision engineering, we transform zinc alloy via:
Die-casting & Micro-casting: Cost-efficient mass production with fine detail.
Molding/Cutting/Welding: Tailored shaping for structural integrity.
Laser Engraving & Etching: Premium finishes for decorative accents.
Key Applications:
Fashion hardware, high-end accessories, and functional adornments balancedurabilitywith refined aesthetics.
Durability Meets Elegance
Renowned for its superior mechanical properties, corrosion resistance, andoxidationstability, stainless steel is a premium choice for luxury metal accessories.
Our stainless steel components feature:
Vacuum Plating (PVD): A water-based electroplating process that delivers brilliant, fade-resistant finishes. High-Gloss Surfaces: Maintains lasting luster for enduring quality
Why Luxury Brands Choose Stainless Steel:
• Exceptional durability for daily wear
• Hypoallergenic properties for sensitive skin
• Timeless aesthetic appeal
Key Applications:
High-end fashion hardware, jewelry findings, and luxury accessories require bothstrengthand refined beauty.
Lightweight & Versatile
Valued for its lightweight, excellent ductility, and corrosion resistance, a preferred material for functional yet fashionable metal accessories.
Key Advantages:
Lightweight Strength: Ideal for larger fashion accessories requiring durability without bulkSuperior Workability: Easily shaped into diverse designs while maintaining structural integrity.
Natural Corrosion Resistance: Ensures long-lasting wear and minimal maintenance
Primary Application:
Optimized for substantial fashion hardware and statement accessories where weight reduction matters.
Sustainable alternatives
We work with the finest genuine and eco-friendly leathers, while offering flexibilityforclient-supplied or third-party materials, transforming them into exceptional fashionaccents through masterful craftsmanship.
Our Leather Expertise:
Material Selection: Stocking premium-grade leathers and sustainable alternatives Custom Solutions: Compatible with client-provided leathers or semi-finished goods
Artisan Techniques:
• Embroidery & Embossing /• Beading & Inlay Work /• Precision Bonding &Assembly
Why Clients Choose Us:
Design Versatility: Unconventional combinations that elevate product value Technical Excellence: Flawless integration of hardware with leather substrates Global Appeal: Signature finishes that drive repeat orders from luxury markets
Innovative Solutions
Resin polymers and plastics offer unparalleled versatility through injection molding and advanced processing, enabling vibrant colors and unique design elements for diverse applications.
Classic Injection Materials:
• Nylon & ABS: Durable and electroplatable (ideal for metallic finishes)
• Methyl Methacrylate: Crystal-clear transparency as an alternative to gemstones/glass
• PVC: Flexible properties for rubber-like components
Surface Finishing:
• Enamel application (spray, brush, airbrush)
• Anti-oxidation electrostatic protection
• Glazing & flash enamel effects
• Lost-wax zirconia pre-setting
Custom Manufacturing:
• CAD design & prototyping services
• End-to-end third-party production support
Why Choose Our Polymers:
√ Design Freedom: From rigid ABS to gem-like acrylics
√ Technical Precision: Electroplating, transparency control, and flexible finishes
√ Complete Service: From concept to final product
We carry out spray enamelling by syringe, brush and airbrush, static anti-oxidation protection, flash enamelling, glazing, lost wax zircon pre-setting.
We provide personalized CAD design, prototyping and modeling services according to customer needs and offer a wide range of services and complete third-party manufacturing.
Organic elegance
For decades, we’ve mastered the art of combining metals with exquisite decorative elements—transforming functional trims into wearable art.
Precious Material Expertise:
Noble Metals: 18K gold, sterling silver & platinum for premium value enhancement
Natural Elements:
• Pearls & Shells → Organic elegance
• Horn & Jade → Earthy texture contrast
Decorative Brilliance:
• Cubic zirconia & Rhinestones → High-impact sparkle
• Crystal & Gemstones → Luxurious depth
Why Partner With Us:
✓ Material Synergy: Technical solutions for perfect metal-to-organic bonding
✓ Design Alchemy: From corporate logos (rhinestonestuds) to artisan collections (horn inlays)
✓ Visual Proof: [Insert material collage: pearl strands, rawhornslices, precision-cut zircons.
