We are specialized in making Square Steel Tube with specification range20*20-500*500,rectangular tube range 20*30-400*500, wall thickness 1.5-25mm.We are also able to make ellipse tube,semicircle tube, arch tube, fan-shaped tube, triangle tube, hexagon tube and other complex cross-sectional tube, which contains the welded and the seamless with various materials and thoudsands of specification.