... valve.Our products include globe valves,check valves,safety valves,ball valves,butterfly valves,diaphragm valves, ... ,vapor,steam etc.5) Body and disc material: WCB, CF3, CF8, CF3M, CF8M etc.6) ... Stem material: 410(1Cr13),420(2Cr13), 304, 316, 304L, ... Operating type: worm gear, pneumatic actuatorDrawing and technique data sheet will be worked out for your confirmation before ...