Detailed Product Description petroleum pipe fitting 90 degree and 45 degree elbow, cross, tee ,union, flange.stud bolt and nut, welding outlet, there are other pipe fittings : threaded uniion, thread coupling ,nipple ,half nipple , square head plug, pressure seal valves, cryogenic value, globe value, integral flanged valvematerial : stainless and carbon welcome to your inquriy