阀体、阀盖 GB WCB ZG1Cr18Ni9Ti ZG1Cr18Ni12Mo2Ti
ASTM WCB CF8 CF8M
球体 GB 2Cr13 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti
ASTM 420 304 316
阀杆 GB 2Cr13 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti
ASTM 420 304 316
阀座 GB 2Cr13/PTFE 1Cr18Ni9Ti/PTFE 1Cr18Ni12Mo2TiPTFE
ASTM 420/PTFE 304/PTFE 316/PTFE
填料 GB PTFE PTFE PTFE
ASTM PTFE PTFE PTFE
螺栓 GB 35 0Cr18Ni9 0Cr18N89
ASTM A193 B7 A320-B8 A320-B8
螺母 GB 45 0Cr18Ni9 0Cr18Ni9
ASTM A1942H A190-8 A194-8 |