SUS304 ,SUS321 metal o rings Specification:Description:Metal O-ring is unique gasket made of metal tube which is formed ... machinery and equipments, plastic forming machines, on joints in aircrafts, pile.On joint in aircrafts, pile, vacuum equipments, combustion engines, electronic apparatus ... ~ 760 -250 ~ 700Surface treatmentmore informaton from www.sinston.com Metal O ring, SUS321 metal o Rings