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Based in Shenzhen, China, San Heng is a specialist injection moulding company manufacturing and supplying high-quality plastic components and products to global markets. With over two decades of expertise, we deliver reliability, precision, and innovation for your industrial needs.
+86-755-3367-0018
Call for Inquiry
Founded in 2003, Sanheng Precision Industrial (Shenzhen) Co., Ltd. has grown into a trusted partner for high-volume, precision plastic component manufacturing across diverse industries.
San Heng specializes in injection moulding, delivering quality plastic components and finished products to clients worldwide. Our team combines deep technical expertise with a commitment to excellence, ensuring every project meets the highest standards.
We serve industries ranging from IT and electronics to automotive, providing end-to-end solutions from design to assembly. With 26 modern injection molding machines, screen printing lines, and full assembly capabilities, we support high-volume production with strict quality control.
20+
Years Experience
26+
Machines
Our qualified CAD technicians use solid modeling to visualize and simulate product performance before production. This reduces material waste and accelerates time-to-market.
Utilizing CNC-monitored, energy-efficient machines, we produce highly accurate plastic components with consistent quality across large volumes.
From raw material selection to final packaging, our assembly department handles the entire production chain, including pad printing and logistics.
We process a wide range of imported and domestic plastics, leveraging deep material knowledge to match the best polymer to your application.
Advanced testing instruments like Biquardratic Microscopes and Three Coordinate Testers ensure every product meets exacting standards from raw input to final output.
Certified under ISO14001 and ROHS-compliant since 2006, we prioritize sustainable manufacturing practices.
ISO9001:2000
Oct 2006
ROHS
Nov 2006
ISO9001:2008
Oct 2010
ISO14001
Jun 2011
Competitive. Professional. Quality. Reliable.
Advanced CNC monitoring and CAD simulation ensure unmatched accuracy.
From design to delivery, we manage your entire production lifecycle.
ISO-certified and ROHS-compliant for quality and environmental safety.
High-quality plastic components for diverse industries
High-tolerance parts for industrial applications
Durable enclosures for electronics and devices
Interior and exterior plastic parts
Casing and structural parts
Tailored for client-specific needs
Integrated production and packaging
Marked with logos and labels
Engineered for durability and performance
We process a wide variety of imported and locally produced plastics, including ABS, PC, PP, PE, and more, based on your product requirements.
Yes, we hold ISO9001:2008 and ISO14001 certifications, and have been ROHS-compliant since 2006.
Absolutely. From CAD design and mould creation to injection, assembly, printing, and shipping, we manage the entire process.
We serve IT, automotive, consumer electronics, industrial equipment, and more.
For inquiries, quotes, or project discussions, reach out to us directly.
Phone: +86-755-3367-0018
Fax: +86-755-3367-2798
Address: 4th Floor of Building 10, Fu'an Second Industrial City, Fuyong Street Office, Bao'an District, Shenzhen City
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