Spiral Welded Steel Pipe1,Website:http://www.sinosteelpipes.com,Specification: Material: Q235A,Q235B,0Cr13,1Cr17,00Cr19Ni11,1Cr18Ni9,0Cr18Ni11Nb,16Mn,20#,Q345,L245,L290,40#,60#,X42,X46,X70,X80Standard: SY/T5037-2000; GB/T9711.1-1997; GB/T9711.2 B; GB/T9711-2011API-5L(PSL1,PSL2); SY/T5040-92; SY/T5037-2000. Outsize: Φ219-2020mm; Thickness: 6~14mm. 2,Characteristic & Application: Mainly used in domestic water engineering system, petrochemical industry, chemical industry, power industry, agricultural irrigation system, urban construction. For liquid transportation: water supply and drainage. For gas transportation: gas, steam, liquefied petroleum gas. For structural purpose: piling pipe for bridges; or used as docks, roads, buildings and other structures pipes.3,Main Manufacturer Process: Uncoiling - Rolling - leveling - butt welding - Milling - Forming - internal welding - outside welding - cutting - break - up welding - Pressure testing-Pack and stock4,Other details:    Length: According to requirement. Packing detail: Standard seaworthy export package or as your demand.    Payment Terms: 30% T/T deposit in advance, 70% T/T balance against copy of B/L. L/C at sightPort of dispatch: Qingdao; Tianjin5,Production Line show:     (1).Production line(2).Finished product(3).Our warehouse6. Adavantage:    As one of the biggest manufactures of China, we exported large quantity to American, Europe, Asia and Africa countries, due to high quality and reasonable price. Our price is very competitive because we are manufacturer, we are the source.