Introduction
Company Introduction
Professional Injection Molding × Integrated Design × Precision Manufacturing × Over 40 Years of Trusted Brand
CHARNG RUHN PLASTIC CO., LTD. was founded in 1978, originally known as Cheng Gong Plastics Industrial Co., specializing in plastic coloring and compounding in its early years. In 1982, the company transformed and upgraded into a professional injection molding manufacturer and was officially renamed “CHARNG RUHN PLASTIC.”
With more than 40 years of hands-on experience, we serve a wide range of industries including traditional manufacturing, high-tech, and healthcare. We focus on delivering precision plastic injection products and integrated product development services, covering:Lighting housings, optoelectronic components, electronic parts, manual insert-molded products, semiconductor jigs, specialized functional components, water filter valve parts, and medical device housings and components.
Customized Product Development and Design Services
With a professional team and extensive experience, we provide one-stop customized solutions covering product design > mold development > injection mass production > post-processing integration. Our services help clients bring ideas to life quickly and enhance product value.
Why book with us
Our Advantages
Quality Assurance
ISO 9001 Certified, Ensuring Reliability and On-Time Delivery.
Industry Trust
Over 40 Years of Expertise, Serving Clients Across Diverse Industries.
Flexible Small-Batch Production Capability
Capable of Handling Small-Batch, High-Mix Production and Complex Structures
Integrated Design and Manufacturing
Comprehensive Support from Concept Design to Mass Production
Diverse Cross-Industry Experience
Covering applications in optoelectronics, electronics, mechanical components, and medical fields.
Service
Contract Manufacturing Services
We are not only an injection molding manufacturer, but also an integrated OEM/ODM partner with capabilities in design, R&D, manufacturing, and post-processing. We help clients quickly turn ideas into high-quality products and seamlessly transition into stable mass production. Whether it is full-process ODM development or high-precision OEM injection molding, we provide flexible and reliable customized solutions for diverse industries.
