Factory drainage spiral steel pipe 
 The special spiral steel pipe mills drainage pressure fluid conveying spiral submerged arc welded pipe SY5036-83 is mainly used for transporting 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 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 using submerged arc welding steel pipe 
 Spiral steel pipe commonly used standard is generally divided into: SY/T5037-2000 (department standard, spiral steel pipe 
 Spiral Pipe 
 Pump tube 
 Fabric machine 
 pvdf tube, also known as 
 Common fluid pipeline with spiral submerged arc welded pipe), GB/T9711.1-1997 (GB, also known as the Petroleum and natural gas industries - Steel pipe for pipelines - Technical delivery conditions: Pipes of requirement class A (to currently requires strict GB/T9711 .2 
 Pipes of requirement class B)), API-5L (American Petroleum Institute, also known as line pipe; which is divided into PSL1 and PSL2 two levels), SY/T5040-92 (coil material the Q235A pile with spiral submerged arc welded pipe) Q235B.Q23b, 0Cr13, 1Cr17, 00Cr19Ni11, 1Cr18Ni9, 0Cr18Ni11Nb. Q345 
 L245 L290 X42 X46 X70 X80. Http://www.naimoguanjian.com pump tube 
 http://www.thgangguan.com spiral steel pipe http://www.hbthgg.com Spiral Pipe