Mechanical Seals, Pump Seals, Sic Ring manufacturer / supplier in China, offering John Crane 5620 5620PR Double Cartridge Seal for Pusher/Mixer/Agitator M138651 5620/5620P, 22mm CDLC-22(4R) Cartridge Mechanical Seals for CNP CDL/CDLF Pumps OD=77mm HQQV/HQQE, GLF-16-4R 4R GLFT-16 Cartridge Mechanical Seal HQQV/HQQE for Jockey Pump and so on.