... fittings: elbow,tee,cross,reducer,pipe holder,manhole cover, clamp, union,valve, etc 2.Accurate specificatio From the nature to the excellence ... Steel FittingsSpecificationElbow, Tee, Reducer, Cross, Pipe holder, Manhole cover, Clamp, Union, Valve etc StandardDIN, SMS, ISO, 3A, AS, BS, BPEMaterial Grade304, 306 ...