Roller Coated Aluminium Material for Ceilings with Strip Fasteners

详情

As the name suggests, it is a square-shaped tube, many kinds of material can be formed into a square tube body, it media, what for, used in what place, most of the square tube to the majority of steel pipe, after unpacking, flattening, curling, welding to form a round tube, and then from the round tube rolled into a square tube and then cut into the required length.