Trisun Mechanical Seal Manufacture Co(s.h.)., Ltd. is the advanced designer & manufacturer of mechanical seal, the ranges involve in: industrial pump mechanical seal, mixer and agitator seal, cartridge seal, metal bellows seal, auto cooling pump seal and auto air-condition compressor lip seal. Trisun products can replace the mechanical seals produced by John Crane and Burgmann and be widely used in petroleum, chemistry, refinery, paper making, pharmacy, power and auto industry. Now, Trisun mechanical seal company widely cooperate with domestic & overseas institute, supply many famous enterprises in OEM market and receive respected honor, who establish own sales network. In 2003, Trisun Mechanical Seal Manufacture Co(s.h.)., Ltd. set up the headquarters in Songjiang Industrial Zone, Shanghai and possesses R & D center, Quality Inspection center and Logistics center. Besides this, Trisun Group manages Wenzhou Industrial Zone for Industrial pump mechanical seal and Wujin Hunter Seal Factory for auto cooling pump and compressor mechanical seal. We passed UKAS ISO9001, ISO14001 & ISO/TS16949 certificate. Now, our company has more than 400 employees, working in 40, 000 square-meter workshops. The annual production capacity achieves in 7, 000, 000 sets for mechanical seal and 10, 000 sets for metal bellows & cartridge seal.