公称通径:DN15to100or1/2”to4”材质:阀体:WN0.6025,WN0.7043,WN1.0619orWN1.4581A126B,A216WCC,A351CF8M阀芯/阀座:CrNisteelorCrNiMosteel填料:V-ringpackingPTFEwithcarbonorGraphite波纹管:WN1.4571)