Company Profile

Zhejiang Sanzhong Machinery Co., Ltd. is a professional manufacturing enterprise specializing in the production of automotive air brake valves, hydraulic brake pumps, brake chambers, clutch boosters, brake adjustment arms, air dryers, shift boosters, trailer accessories, and various springs. It has an annual production capacity of six million pieces of various automotive components. It has jurisdiction over Jiangxi Sanzhong Industrial Co., Ltd. and Shishou Sanzhong Automotive Parts Factory, Its predecessor was Zhuji Sanzhong Brake Valve Co., Ltd. The "Three Middle Brand" product has been awarded the title of "Famous Trademark in Zhejiang Province", and the company has been rated as an AAA level credit enterprise for many years. The product quality is underwritten by Pacific Insurance Company and has passed the TS16949 international quality management system certification. Currently supporting more than ten domestic automobile manufacturing enterprises.
Leading technology and excellent quality are the characteristics of the "Three Middle Schools". The company now has more than ten patents, including three proportion relay valve, three axle quick release synchronous relay valve, synchronous emergency relay valve, etc., which improve the reliability, sensitivity, and comfort of braking for automobiles, semi trailers, and trailers.
The company currently has 10 125T-400T die-casting machines, over 300 various equipment for turning, milling, and grinding, and complete testing facilities. It has capabilities in aluminum, zinc, iron casting, metal processing, surface treatment, assembly testing, and other fields.
Quality goal: Pursuing excellence without end
Business philosophy: integrity, responsibility, and striving to create a brand