... MAHINCED AND POLISHED 3.EXPANDING TYPE ALSO AVAILABLE stainless steel unionMaterical:1)Body: Stainless Steel2)Handle: Stainless Steel (Forging)3)Ring:Steel40Thread:Male/FemaleFeature:1)Precisely ... 6"4)Type:A,B,C,D,E,F,DC,DA,DD,BN,HB,WN,SFM/Stainless steel5)Processing:CNC machining6)packing ...