Product Name: Teflon PTFE/FEP/PFA/EPDM Wafer/Flange/Lug CF8 PTFE Lever Opreated Wafer Butterf Valve Model NO.: D71F4-10C/D371F4-16C Application: Water Industrial Usage Standard: GB/T13927 Valve Body: Casting Material of Seal Surface: metal Hard Sealed Working Temperature: Normal Temperature (-40