Tianjin Pipe Tianjin Pipe for sale at the Tianjin straight seam steel pipe Tianjin pipe contact 
 www.bengguan168.com www.naimoguanjian.com 
 www.thgangguan.com 
 We uphold a pragmatic and enterprising spirit, the power of entrepreneurial brand and look forward to with the majority of users to share a brilliant future. Hebei Hui Steel Pipe Manufacturing Co., Ltd. specializing in the production of GB, the Ministry of standard 219-3200mm, wall thickness 2-20mm L245 and Q345 material spiral, high-frequency welded pipe production line in the new 219-325mm, and large diameter seamless pipes straight seam pipe. Large-diameter thick-walled butt welded pipe 

 ? Spiral Standard Classification pressure fluid transmission spiral submerged arc welded pipe SY5036-83 is mainly used to transport oil, natural gas pipelines; pressure fluid conveying high frequency welded steel pipes with spiral seam SY5038-83, with high frequency ride Weld method for pressure fluid transmission spiral seam welding of high-frequency welded steel pipe. Bearing capacity of steel pipe, plastic, for easy welding and processing; generally low-pressure fluid transmission spiral submerged arc welded steel pipe SY5037-83, using double-sided automatic submerged arc welding or single-sided welding into the legal system for water, gas, The low pressure fluid such as air and steam SAW pipe, spiral steel pipe commonly used standards are generally divided into: SY/T5037-2000 (department standard, also known as ordinary fluid pipes with spiral seam submerged arc welded steel pipe), GB/T9711 the .1-1997 (GB, also known as the Petroleum and natural gas industries - Steel pipe for pipelines - Technical delivery conditions Part 1: Pipes of requirement class A (the current demanding GB/T9711.2 Class B steel pipe)), the API-5L (American Petroleum Institute, also known as line pipe; which is divided into PSL1 and PSL2 two levels), SY/T5040-92 (pile with spiral seam submerged arc welded steel) coil material the Q235A, Q235B.Q23b, 0Cr13, 1Cr17, 00Cr19Ni11 1Cr18Ni9, 0Cr18Ni11Nb. of Q345 L245 L290 X42 X46 of X70 X80??? 


 Hebei specializing in the production of spiral spiral steel pipe Hebei Tianhui spiral steel pipe manufacturer a lot of cash! @ [Main Sales Tel :0317 -5,128,176 13,931,753,303 15,128,720,808] Company: spiral welded pipe, spiral steel pipe, welded steel pipe manufacturer. Production: spiral welded steel pipe, spiral submerged arc welded pipe, dredge pipe, steel pipe, seamless tube, thermal expansion, spiral steel pipe, spiral welded pipe, straight seam pipe, elbow flanges, spiral welded steel pipe welding the pipe volume, T-shaped pipe, pressure pipe, water pipe, straight seam steel pipe, hot-rolled steel, billboards with steel pipes, municipal water supply pipe. The factory has five double-sided submerged arc spiral pipe production line, produce processing-diameter 219-3020mm, wall thickness 4-30mm spiral welded pipe of a variety of materials. U.S. Lincoln welder line of automatic two-sided submerged arc welding products, the implementation the standard SY/T5037-2000 of oil and gas industry, SY/5040-92 the, GB/T9711.1-97 production, the company based on quality, the full implementation of quality management . Passed the ISO9002 quality management system certification, and passed the ISO9001-2000 quality management system certification. And is equipped with X-ray, ultrasonic and hydrostatic pressure across the board automatically detect. This product is widely used in the field of water engineering, petrochemical industry, hydroelectric power industry, agriculture, irrigation and urban construction. For liquid