... Stainless Steel4.Operation: Hand wheel, gear, square head.5.Standard: GB,DIN,JIS,ANSI,BS.6.Suitable medium:water, ... globe valves,check valves,safety valves,ball valves,butterfly valves,diaphragm valves,mud valve ect.And it has complete inspection equipment, ... Test system equipment, which can control the production quality effectively Standard compliance:1) Design and manufacture: BS5163, DIN 3352, JIS ...