Seamless pipe/tube,Seamless/Butt-welding,elbow,tee,reducer,Flanges Size:12mm~324mm, WT:1mm~20mm GUOBANG STEEL have Pipe and ... B366Products:Pipe & Tube(Seamless in Random Lengths and cut to size)Fittings(Seamless Elbow,Tee,Cap,Reducer etc. with Butt-welding ... (Round,Square and hexagonal in random lengths and cut to size) Specification:Austenitic steel: OD:6mm to 630mm,THK:0.8mm--30mmDuplex ...