Standard:API, ASTM, DIN, GB, API 5CT, API 5L, ASTM A53-2007, DIN 2444, GB/T 3091-2001, GB/T 9711.1-1997, GB/T 9711.2-1999, GB/T9711,SY/T5037,API 5L Grade:10#-45#, A53-A369, Q195-Q345, ST35-ST52, 10#, 20#, A53(A,B), Q195, Q235, Q345, St37, St37-2, St52 Thickness:6 - 25.4 mm Section Shape:Round Outer Diameter:219 - 2620 mm Place of Origin:Tianjin, China (Mainland) Secondary Or Not:Non-secondary Application:Chemical Fertilizer Pipe Technique:SAW, Double-sided spiral submerged arc welding Certification:API Surface Treatment:PE coated, oiled or as per your requests, oiled, galvanized Special Pipe:API Pipe Alloy Or Not:Non-alloy Product name:SSAW spiral steel pipe Length:12 Meters Brand Name:Ruijie samples:offer Factory or not:manufacturer End finished:bevelled Produce lines:4