Shandong yun ShengGuoJi trade co., LTD. This is shandong tube macro Ming industry co., LTD., a wholly owned subsidiary of, our company was founded in 2009, has more than 10 years of experience in production and trade. We have two advanced production line, our production and test equipment is the latest in the domestic steel industry.Production process: hot-rolled seamless steel tube, cold drawn seamless steel tube, precision rolling seamless steel tube, extrusion tube, hexagonal tube, cold drawn special pipe, rebar and other productsHollow hexagonal hollow steel, 6 edge hollow steel, six Angle steel, six Angle steel hollowHexagonal hollow steel smelting blowing oxygen. Specification: B19, B22, B25, B28, B32, B35. Oxygen with hexagonal hollow steel (also called: hexagon hollow steel, 6 edge hollow hollow hollow steel, six Angle steel, six Angle steel) is the necessary tool to oxygen blast furnace mouth and send. This product made in 45 carbon steel, and its product advantages: wall thickness, the center hole is small, high intensity, blowing in deep and consumption of small, oxygen consumption, the characteristics of low cost. Has completely replaced the steel tube type oxygen tube. Drill rod drilling tools with hexagonal hollow steel specification: B19, B22, B25, B28, B32, B35. Material: 80 simnmo cr, 55, 60 si2mn, 40 simncrnimo products are widely used in: mining, railway, tunnel engineering, metallurgy, mine, water conservancy project, mountain, stone cutting, drillingProfessional production and processing company, has a complete scientific quality management system. Spot materials: 10 #, 20 #, 35 #, 45 #, 16 mn, 27 simn, 20 cr, cr, 40, 42 crmo, 35 crmo, n80, p91, etc. Stock inventory of 50000 tons, specifications: outer diameter 3 mm - 820 mm, thickness: 1 mm - 100 mm Chengdu iron and steel group, smelting iron and steel group, baotou steel, baosteel group, anshan, dalian, tianjin seamless steel tube, xining special steel factory, wuxi steel plant, hengyang steel plant and other major steel mills set up a director. The cooperation between the two sides. Main standards: GB/T8162-1999, GB/T8163-1999, GB/T3087-1999, API, API 5 ct, ASTM, BS, DIN, etc. Steel tube type: low, and low density seamless steel tube high pressure boiler, oil cracking tube, alloy seamless steel pipe, oil casing, etc. Shandong ShengGuoJi trade co., LTD. Of integrity, strength and product quality get industry recognition. Welcome friends from all walks of life to visit, guidance and business negotiations.