Seamless square tubes are steel pipes with four right angles, formed by cold drawing and extrusion from seamless steel pipes. They have an essential difference from welded square tubes. These pipes have a hollow cross-section and are widely used as pipelines for conveying fluids. Square and rectangular tubes refer to a type of steel tube, with equal or unequal side lengths, which are rolled from strip steel through a process. Typically, the strip steel is unpacked, leveled, curled, welded into a round tube, then rolled into a square shape and cut to the required length.

Lanzhou Xinxiangtengda Materials Co., Ltd. is a modern enterprise specializing in the production and supply of seamless steel pipes, spiral steel pipes, various pipe insulation and corrosion protection materials, welded pipes, large-diameter welded pipes, galvanized steel pipes, processing of various greenhouse skeletons, flanges/valves, stainless steel pipes and plates, alloy steel pipes, angle steel, channel steel, I-beams, flat steel, H-beams, pipeline pipes, copper and aluminum plates, and copper-aluminum products. The company enjoys an advantageous location with extremely convenient transportation conditions.