Geological Drilling square steel (YB235-70) is the core drilling for geological department used square steel, galvanized square tube prices by applications can be divided into the drill pipe, drill collar, core pipe, casing and precipitation tubes. Diamond core drilling large diameter Rectangular Pipe (GB3423-82) is a drill, core rods used for diamond core drilling large diameter casing Rectangular Pipe. The maximum thickness of rectangular tube of large-sized thick-walled cold-formed square and rectangular steel pipe production process up to 19mm, square tube price, not only in absolute thick thickness, 304 square tube, also reflected in the relative thickness of the product. The thickness of the roll forming is an important indicator of difficulty, square tubes edge thickness ratio. At home and abroad generally agreed that Hebei pipe, edge thickness ratio is less than 10:00 molding products with high difficulty. The production process of rectangular tube, the wall thickness of the product to its small section of a large edge thickness ratio of up to 7, such as 100mm * 100mm * 14mm, 120mm * 120mm * 16mm and so on. Galvanized square tube square tube _ _ Hebei Mastery provided by the Tianjin Steel Union Steel Union Co., Ltd. Mastery. Mastery of Tianjin Steel Trade Co., Ltd. (www.tjtdgl.com) (www.tdglgt.com) strong, credible, Liaocheng in Shandong steel industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving access innovative ideas will lead VAI into the brilliant and you work for a better future!