... T 79.1~79.4-1994,GB/T 9113-2000, ANSI,JIS,DIN Note:working pressure,work temperature,Nominal diameter, and so ... on. Can changed according to your requirements.Materials for main partslValve body material :cast steel(ZG230-450),Cast stainless ... steelZG1Cr18Ni9Ti,304,304L,316,316L,corrosion-resisting alloy…lSphere/seat material:PTFE,A105,1Cr13, 304,304L,316,316L,corrosion-resisting ...