Our company specialize in producing and selling the API standard drill pipe. the drill pipe is fitted with strong technical force. we have the world top quality facilities ,such as hydraulic forging machine,walking beam quenching furnace,hot and could straighten device,friction welder,middle frequency heat treatment,numberical control lathe and compete set of supersonic inspection and magnetic particle inspection.the whole process includes hot upsetparticle inspection,friction welding,seam inspection.we strictly carry out API spec Q1 quality control system and API spec 5DP production standard.we can supply various sizes of drill pipe,the average value of compact property under the low temperature condition is 150 joule during weld seam test is our advantage.