... ,union,bushing,barrel nipple,close nipple ,welding nipple,hose nipple,socket,coupling etc.2.valves series: 1pc,2pc,3pc ball valve ... coupling: type A,TypeB, typeC, typeD, typeE, typeF, typeDC, typeDP4.Malleable iron pipe fittings such as elbow,tee,union,bushing,socket and so ... our factory, establish the cooperative relation of equal mutual benefit . Type A ADAPTOR FEMALE