Seamless square tube main specifications are: 135 * 135 Size seamless square tube: Professional for a variety of lifting machinery, lifting machinery, 120 * 120 seamless square tube is mainly used for a variety of cement equipment, 200 * 200 specifications seamless square tube steel support is mainly used for a variety of purposes. 400 * 400 specifications 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 structures, machinery and equipment, 600 * 600 large diameter thick-walled seamless square tube is mainly used for steel stents, seamless square tube can be carried out according to each specific use kinds of material seamless square tube products to order: Q345B seamless square tube 20 # seamless square tube, seamless square tube 45 #, 16Mn seamless square tube
    Seamless steel tube is divided into: cold drawn seamless rectangular tube, cold-rolled seamless rectangular tube, seamless steel tube branch according to your specific needs custom processing, seamless steel tube main specifications are: 400 * 300 large caliber without seam rectangular tube, 300 * 200 thick-walled seamless steel tube, 200 * 250 16Mn seamless steel tube, 600 * 550 large diameter thick-walled seamless steel tube, 120 * 100 thick-walled seamless steel tube, seamless steel tube products application areas: steel seamless steel tube, seamless steel tube machinery, ship with a seamless steel tube, seamless steel tube supporting piers.