1 pipe in pipe. Such as: water, gas pipe, steam pipeseamless steel pipe, oil pipe, oil and natural gas line pipe. Agricultural irrigation water and irrigation tube, with tube. 2 thermal tubes for equipment. Such as general boiler for boiling water pipe, superheated steam tube, the locomotive boiler with heat pipe, flue, smoke tube, arch tube and high pressure boiler tube. 3 Machinery Industrial pipe. Such as the aviation structural pipe ( tube, oval tube, flat and oval tube ), automotive axle tube, an axle tube, automobile and tractor structure pipe, tractor oil cooler pipe, square pipe rectangular pipe with machinery, transformer tube as well as the bearing tube and so on. 4 petroleum geological drilling pipe. Such as: oil drill pipe, drill pipe ( Kelly and six angle drill pipe, drill collar ), oil pipe, oil pipe and various pipe joint, geological drilling pipe ( core pipe, casing, drill pipe, drill collar, active in the hoop and pin joint etc.). 5 Chemical Industrial tube. Such as: Cracking of oil, chemical equipment and pipeline heat exchanger tube, stainless pipe, fertilizer with high pressure pipe and tube, chemical transmission medium. 6 other departments with tube. Such as: vessel pipe ( tube for high pressure vessel with general container tube ), instrumentation tube, watches shell tube, injection needle and its use of medical equipment etc..
