Wenzhou Hengyi Auto Parts Co., Ltd. manufactures automotive quick connectors and hose assemblies, specializing in engine ventilation and fuel system hoses with strong in-house molding and testing capabilities.
Wenzhou Hengyi Auto Parts Co., Ltd. manufactures automotive quick connectors and hose assemblies for passenger car engine and fuel systems. Its core range includes crankcase breather and ventilation hoses, air intake hoses, fuel lines and fuel pump corrugated hoses, vacuum pipes, and related plastic auto parts.
Based in Wenzhou, the company integrates product design, production, and sales, and focuses on engineering connection technology and practical application innovation. With injection molding, blow molding, welding and ultrasonic welding processes supported by professional testing equipment, it delivers stable, repeatable quality for high-volume automotive components.
Quality management is guided by IATF 16949 and 6S practices, with dedicated laboratory and dust-free workshop capabilities described as part of its modern production set-up. The company serves both the domestic market and overseas customers across regions including the USA, Europe, Asia, and the Middle East.

The company operates injection molding and blow molding equipment alongside welding and ultrasonic welding capability, supported by professional testing equipment for product verification and quality assurance.
| Equipment | Quantity |
|---|---|
| Injection molding machines | 20 |
| Blow molding machines | 15 |
Quality control is managed in line with automotive quality standards, supported by testing equipment and workshop conditions designed to maintain consistent product performance.
The team emphasizes fast, efficient product output from design through production, with ongoing investment in research and development to strengthen engineering connection technology and application innovation.
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