... Size DN50mm - DN300mm, flange pipe flange used electric materials of brass, stainless steel, 10 steel, 10 steel pipe material used, stainless steel, copper. common specifications, 1 ... ) Reference Voltage: 220V/380V; 2) heat pipe: SS304 stainless steel, SL3316 stainless steel, 10 steel, copper; 3) heat pipe diameter: Φ8.5-Φ22; 4) Main ...