Henan Wein professional production, φ 42 and φ 45, PHI 69, PHI 76, φ 89 series high efficiency api drill pipe. Research on drill pipes mainly used in coal mine water, gas, water holes and such. Drill pipe connections between all sides, spring PIN when the plug pops up and the drill pipe easy to install and disassemble, light weight, use performance features, can be achieved in the coal seams near horizontal drilling dozens of meters, common products simply cannot afford a large drilling depth of torsional stress and bending stress. Company produces pipe with a special steel imports, after forging and heat treatment of the tensile strength of up to 1323.89Mpa, which is the normal steel can not be compared. Generally use the spiral type dry drilling technology and drilling speed and drilling well drilling efficiency higher characteristic. More traditional drilling speed is greatly increased. According to actual conditions, water drilling. Excavation of coal bed methane drilling driving progress in impact to a minimum. The product also uses intensive borehole methane drainage in coal mine tunneling has great advantages, it would quickly solve the coal-bed gas emission, release gas pressure in coal seam, effectively achieve the purpose of outburst, thus ensuring the safety of coal mining.