Water of drainage Spiral Pipe Spiral Pipe company has consistently adhered to the "advanced equipment and technology, the quality of survival, quality and development, to management for efficiency" business approach; and constantly open up new markets, new channels, for a long time established a good relationship with our customers, the majority of customers praise. (Executive standard APISpec5L, the GB/T9711.1-1997 SY/T5037-2000) Size (mm) Material: Q235, Q345, coil, and its specification Category: pressure fluid walks with spiral submerged arc welded pipe (SY5036-83 ) walks mainly used for oil, natural gas pipelines; pressure fluid recommended for admission to the high-frequency welded steel pipe (SY5038-83), with spiral welded with high frequency lap welding method for pressurized fluid walks the spiral seam high frequency welded steel pipe. Pipe pressure can be strong, good plasticity, ease of welding and molding process; ordinary low-pressure fluid walks Spiral Welded Steel Pipe (SY5037-83), using double-sided automatic submerged arc welding or single-sided welding into the legal system for water, ordinary low-pressure gas, air and steam fluid walks SAW pipe. http://www.hbthgg.com spiral steel pipe http://www.thgangguan.com spiral steel pipe http://www.naimoguanjian.com pump tube