Zhejiang Sanzhong Machine Co., Ltd. is a professional manufacturer of air brake valves, brake chambers, clutch servos, air dryers and slack adjusters for automobile.

Our company has been honored as "AAA Company" for several years. Our "sanzhong" brand was awarded tiles of "Effect Valves in Zhejiang Province", "Famous Product" and "Famous Brand Name". Our company has passed the evaluation of ISO/TS16949 international manage system certification. Now, we supply accessories and spare parts to more than ten famous auto manufacturers in China.

We will insist on our tenet of "honest, fine quality and high efficiency". We warmly welcome foreign friends to visit us. We also welcome OEM business. If you are interested in our products, please do not hesitate to contact us.