1)body:WCB/Stainless steel
2)seat:WCB/Stainless steel
3)disc:WCB/Stainless steel
4)stem:Stainless steel
5)gasket:Stainless steel +Fexiable graphite
6)packing:Fexiable graphite
7)Apply water/oil/gas
2)seat:WCB/Stainless steel
3)disc:WCB/Stainless steel
4)stem:Stainless steel
5)gasket:Stainless steel +Fexiable graphite
6)packing:Fexiable graphite
7)Apply water/oil/gas