Pipe Fitting, Carbon steel pipe fitting include Elbow, Bend, Socket, Plug, Cross, Reducer, Tee, ... : Pipe Fittings, Carbon steel pipe fittings, Stainless steel fittings, Malleable iron fittings1. Specification: 1/2" - 80"(DN15 - DN2000)2 ... 321H ,310S, 347H ), carbon steel, alloy steel , ductile iron, malleable iron 4. Application:petroleum field, chemical engineering field, electrical power field ...