... professional manufacturer of valve.Our products include globe valves,check valves,safety valves,ball valves,butterfly valves,diaphragm valves,mud valve ect.And it has complete inspection ... : 1986, DIN 3202 F4-F5, JIS B2002, ANSI B16.104) Flanged end: BS4504, DIN 2532, JIS B2212, ANSI B16.10/ANSI ...