Jiangsu Rectangular Pipe manufacturers, Nanjing tower crane dedicated Rectangular Pipe manufacturers, Wuxi Rectangular Pipe wholesale supply steel structure dedicated Rectangular Pipe supply tower crane dedicated Rectangular Pipe Cangzhou City, Yantai Steel Pipe Co., Ltd. specializes in producing seamless square tube, seamless square tube is a formed by cold drawing, cold-rolled seamless square tube. Seamless square and rectangular tube is made of high quality seamless as a raw material. Seamless square tube is generally divided into two processing methods: 1. Drawn seamless: cold drawn seamless tube generally is 200mm * 200mm * 10mm the following specifications seamless square and rectangular tubes, cold drawn behind the rectangular tubes higher precision, more suitable for small caliber. Thin-walled seamless square and rectangular tube production. 2 cold-rolled square and rectangular tube, cold-rolled square steel tube is a drive roller and pressure roller Rectangular Pipe products processing, mainly applicable to a larger diameter, thick square and rectangular tube products, general cold-rolled diameter range: 20mm * 20mm-800mm * 800mm, wall thickness :2-30mm seamless square tube can be customized according to the specific needs of the customers for processing small quantities. Supply of special steel square and rectangular tube supply tower crane dedicated Rectangular Tube Type Beam can also be made to order, is a convenient, new material. Product quality assurance, the mechanical properties are excellent. Seamless tube processing customized according to your specific needs, seamless square tube Specifications: 135 * 135 specifications seamless square tube: Professional for a variety of lifting machinery, lifting machinery, 120 * 120 seamless square pipes are mainly used for a variety of cement equipment, 200 * 200 specifications seamless square tube is mainly used for a variety of steel support. 400 * 400 specifications thick-walled seamless square tube dedicated to all kinds of curtain wall bracket. 500 * 500 large diameter seamless square tube is mainly used for a variety of structural, mechanical equipment, mainly used in steel frame with 600 * 600 large diameter thick-walled seamless square tube, welcome new and old customers call to discuss Yan Thai Steel Pipe staff dedicated to provide you with a the gold medal seamless square tube.