Standard:API 5L, ASTM A53-2007, ASTM A252-1998 Grade Group:10#-45#, 16Mn, A53-A369 Grade:20#, 16Mn, A53(A,B), A106(B,C) Thickness:9.53 - 40 mm Section Shape:Round Outer Diameter(Round):350 - 914 mm Place of Origin:Tianjin, China (Mainland) Application:Boiler Pipe Technique:Cold Drawn Certification:API Surface Treatment:Galvanized Special Pipe:API Pipe Alloy Or Not:Non-alloy Secondary Or Not:Non-secondary Name:Spiral steel pipe used price q235 spiral pipe for agriculture Material:steel plate Length:6-18 Coating:3pe coating End:belved, plain Application1:oil and gas Stardard:api Supply Ability:800 Ton/Tons per Day high quality spiral pipe Packaging & Delivery:Bundles or according to client's requirements high quality spiral pipe. Port:Tianjin port