... 08mm-0.2mm 4.Vaccum Leak Rate:1*10-10PaL/S Vacuum bellows are widely used in aerospace, vacuum industry, semiconductor industry, solar ... welded bellows, it also equipped high precision vacuum life test equipment from Taiwan, Varian VS leak detectors from America, and horizontal rigidity ... -250/450°C(316L), -250/800°C(AM350),The highest vacuum leak rate1*10-10Pa·L/SMaterialVacuum SUS 316L,SUS 304,AM350 ...