... 4 L :5-12m 5 Material: A106/A53 GRB, ST3 DIN 1629 st45 seamless pipe for water Marking :P/O No ... %; Product Namebig inch seamless steel pipe weightStandardAPI5L,ASTM, ANSI, GB,DIN,BSMaterialAPI 5L Grade B/ASTM A106B,10#,20#,45#,ASTM ... ends or as per customer requirement.UsageThe products are widely used in fertilizer, petroleum, centra-station, boiler, powerstation,shiping military,chemical ...