Liaocheng Zeyu Metal Products Co., Tri-arc ridge-type gas drainage drill pipe, drill pipe referred to [Tri], into the cone screw-type, high-pressure type and triangular thread sealing plug type connector is connected according to form . Tri drill made of high quality carbon steel pipe for drilling levers body 42Crmo joints at both ends of high quality materials, the high pressure treatment molding dry drill, air conditioning really tempering. Adopt international advanced interference welding assembly process, to avoid quality problems because they can not use the friction caused by the welding process of welding, compared with similar products greatly improve the mechanical properties of the product and the ability to adapt to the complex geological conditions of deep hole drilling. Tri drill has become the preferred type and soft coal seam drilling of deep geological conditions under soft. Liaocheng Zeyu Metal Products Co., Ltd. is located in the ancient canal Jiangbei Watertown, is a professional production of hexagonal hollow steel, mining drill rod alloy drill, geological drill pipe manufacturer, in recent years, I learned advanced technology and optimized on the basis of management experience in the design, manufacture a brand of mine to Zeyu drill rod, drill geology, mining drill steel hexagonal hollow, circular hollow steel, the product performance reached the international advanced level. The Company since its inception has always insisted: "integrity and pragmatic, scientific and technological innovation" business purpose, to good reputation, excellent quality, cheaper prices, timely delivery by the trust of our customers, and through GB / T19001-2000-ISO9001: 2000 , GB / T19001-2008 / ISO9001: 2008 international quality system certification. Geological drill drill _ _35simnmoV (certified merchants) provided by Liaocheng Zeyu Metal Products Limited. Liaocheng Zeyu Metal Products Co., Ltd. (www.zk55simnmo.com) strong, credible, Shandong Liaocheng special steel industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Zeyu metal and you hand into the brilliant, for a better future!