... 5mm-30mm OD:14mm-530mm Length: 6M-12Mor as required. steel tube , steel pipe Product description ProductSteel pipeMaterialQ195, Q215, Q345, etcOD14mm-530mmThickness3mm ... and trade of iron ore powder, coke, coal, billet steel, strip steel, section steel, steel plate, screws and all kinds of finished products ... so on can be negotiated according to order. WELD TUBE DN125 Round welded steel tube,steel pipe