1, material: SUS316L or SUS304; 2,RoHs compliance; 3,main part for multistage pumps; 4,tight tolerence; 1, material: SUS316L or SUS304; 2,RoHs compliance; 3,main part for multistage pumps; 4,tight tolerence; 5, parts are produced under TS16949 quality system machined stailess steel bushing for pump and boiler