One-Stop Plastic Components Custom Solutions
From design to mass production. We empower 280+ global companies with high-precision custom plastic parts. Low MOQ, 100% inspection, and 12+ years of OEM/ODM expertise.
100+
MOQ (Pcs)
±0.1mm
Precision
1200+
Projects
Engineered for Performance
We provide custom plastic manufacturing for automotive, electronics, industrial, agricultural, appliance and construction sectors, offering end-to-end support from design to production. With full-time engineering oversight, we guarantee 100% dimensional accuracy on every part.
Injection Molding Parts Manufacturer
From 3D printing prototypes to mass production. We integrate CNC machining and injection molding (1-2000g capacity) with 25 advanced machines.
- Design Assistance
- Assembly & Packaging
Material Expertise
We source from top 10 brands with full inspection reports. Engineering grade materials tailored to your environmental requirements.
Rigorous QA
5+ years experienced QC personnel on every line. We adhere to ISO 2859 sampling and 100% outgoing inspection to minimize your warranty costs.
- Outgoing Inspection Report
- ±0.1mm Accuracy
Ready to start your project?
Confidentiality Agreements (NDA) available upon request.
Trusted Across Industries
280+ companies worldwide rely on our precision manufacturing for mission-critical components
Automotive
Construction
Electronic
Machinery
Transmission
Get Engineering-Reviewed Custom Plastic Plans.
Share your drawings or part specs via WhatsApp. Our engineers respond within 24 hours -- no obligation, fully confidential.
- NDA Available
- Low MOQ 100 pcs
- ISO 9001:2015
- ±0.1mm Precision
Free · No obligation · Reply in 24 h
Weichuang Support
WhatsApp: +86 133 1060 8717
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Tailored Solutions for Every Industry
From classic car modification to heavy machinery, we deliver precision-engineered plastic components that meet the most demanding specifications.
Design to Production
Complete product development from concept sketches to mass production. We provide 3D printing prototypes, mold design optimization, and scalable manufacturing solutions.
- Rapid prototyping (3-7 days)
- DFM analysis included
- MOQ as low as 100 pieces
Material Engineering
Expert material selection and testing for extreme environments. From high-temperature PEEK to impact-resistant ABS, we source from top-tier suppliers with full traceability.
- RoHS & REACH compliant
- Material test reports provided
- Custom color matching
Quality Assurance
ISO 9001:2015 certified processes with 100% outgoing inspection. Every component is measured, tested, and documented to reduce your warranty costs.
- ±0.1mm precision tolerance
- ISO 2859 sampling standards
- 5+ years QC experience per line
Custom Packaging & Logistics
End-to-end solutions including assembly, logo printing, custom packaging design, and global shipping coordination to streamline your supply chain.
- Assembly & sub-assembly
- Branded packaging design
- Global shipping coordination
Featured Projects
Real solutions for real challenges across diverse industries

Custom Dashboard Components
High-gloss ABS parts for vintage car restoration project. 500-piece batch with custom color matching and UV-resistant coating.

Water & Electricity Meter Enclosures Custom Production
High-precision PC housing for utility meter enclosures. Custom production with flame retardant V0 rating, UV resistance and IP54 protection for outdoor installation.

Custom Shell & Mechanical Parts for Small Home Appliances
Precision-molded ABS and PP housings for blenders, air purifiers, and kitchen appliances. Supports complex geometries, snap-fit structures, and surface finishing with tight ±0.1mm tolerance for seamless assembly.
Ready to bring your project to life?
Join 280+ companies worldwide who trust Weichuang for precision manufacturing. NDA available upon request.
State-of-the-Art Equipment
Our facility houses advanced machinery from leading manufacturers, ensuring precision and efficiency in every project.

5-Axis CNC Center
High-precision machining for complex plastic components with automated tool changing.
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Injection Molding Line
Automated production lines with real-time quality monitoring and process control.
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QC Inspection Lab
Advanced metrology equipment ensuring dimensional accuracy and material compliance.
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3D Printing Lab
Industrial-grade additive manufacturing for rapid prototyping and low-volume production.
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Assembly & Packaging
Integrated assembly lines with custom packaging solutions for complete product delivery.
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Material Warehouse
Climate-controlled storage for engineering plastics with full traceability documentation.
Learn MoreTrusted by Industry Leaders
Our certifications and compliance standards ensure every product meets the highest international quality benchmarks.
ISO 9001:2015
Quality Management System
RoHS Compliant
Environmental Standards
ISO 2859
Sampling Inspection
NDA Available
Confidentiality Guaranteed
100% Inspection
Every product undergoes rigorous outgoing quality control before shipment.
Material Traceability
Full inspection reports from top 500 brand materials with batch tracking.
±0.1mm Precision
Advanced CNC and injection molding technology ensures dimensional accuracy.
What Our Clients Say
Trusted by 280+ companies globally across automotive, machinery, and appliances industries.
"Weichuang's low MOQ and fast turnaround saved our classic car project. The precision on custom dashboard components was flawless. Their team understands automotive requirements perfectly."
James Miller
Purchasing Manager, Classic Auto Restoration
"We've worked with multiple manufacturers, but Weichuang's material quality and QC process are exceptional. Their ISO compliance and inspection reports give us complete peace of mind."
James Mitchell
Quality Director, Industrial Equipment Co.
"The one-stop service from design to packaging is a game-changer. Their engineering team helped optimize our part design, reducing costs by 20% without compromising quality."
Thomas Mitchell
Procurement Manager, AgriTech Equipment Co.
Join 280+ companies who trust Weichuang for precision manufacturing