Ningbo Rock Metal Product Co., Ltd was established in 2007 and has been successfully mechanical seal sintering structural components in Ningbo, China. We specialize developing manufacturing various products, such as seal, cartridge O.E.M. pump compressor bushing, nozzle complete, ...

The company founded in January 2002 is a professional manufacturer. committed to the design and production of various types machinery spare parts.These products are widely used industries,including automobile,military,agriculture,medical,industrial equipment,motorcycles ...