Top Quality Elastomer Bellow Water Pump John Crane Mechanical Seal

Ningbo Rock Metal Product Co., Ltd was established in 2007 and has been successfully mechanical seal and sintering structural components in Ningbo, China. We specialize in developing and manufacturing various products, such as mechanical seal, cartridge seal, O.E.M. pump seal, compressor seal, bushing, nozzle complete, carbon graphite, silicon carbide, tungsten carbide, ceramics etc. Rock Metal has undertaken its production of advanced powder products and in-house R&am...