... LCB,LC3,A105,F304,F316 etc.Wenzhou ONO Valve CO.,Ltd is a 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 equipment, such equipments ... JB/T79.1~79.25.Pressure test of general valve: GB/T139276.Valve inspection and test: JB/T90927.Drivign manner: Spur gear ...