Zhejiang Sanzhong Machine Co., Ltd. is a professional manufacturing enterprise which mainly produces automobile air brake valves, hydraulic brake pumps, brake chambers, clutch boosters, brake adjusting arms, air dryers, shift boosters, trailer accessories, all kinds of springs, etc, realizing an annual productivity of 6,000,000 various automobile parts. The company (former Zhuji Sanzhong Brake Valve Co., Ltd.) has subsidiaries of Jiangxi Sanzhong Industrial Co., Ltd. and Shishou Sanzhong Automobile Part Plant. Its “Sanzhong” products have been awarded “Zhejiang Famous Trademark”. The company has been awarded “AAA Credit Enterprise” over years. Its product quality is underwritten by China Pacific Insurance (Group) Co., Ltd. The company has passed the certification of TS16949 Quality Management System and provided matching products for a dozen of automobile manufacturing enterprises at home.