Supply square steel pipe, rectangular pipe, thick-walled Rectangular Pipe, Rectangular Pipe side of large diameter pipe the name suggests, it is a kind of square body casts, a variety of materials, substances can form a square tube, it is medium in what used , where most of the square tube steel pipe for the majority After unpacking, smooth, curl, welded to form a tube, and then by the tube rolling into square tube and then cut to required lengths. General mostly in the spot to the large size of 10 * 10 * 0.8-1.5 ~ ~ 500 * 500 * 10-25 is 50 per package God proud of square tube, square tube uses for the structure of square tubes, decorative square tube construction square tube , mechanical square tube, etc.