... Material: A106/A53 GRB, ST3 DIN 1629 st45 seamless pipe for water Marking :P/O No,SPEC. Grade,Size, Heat No ... tolerance: -5%/+5%; Product Namebig inch seamless steel pipe weightStandardAPI5L,ASTM, ANSI, GB,DIN,BSMaterialAPI 5L Grade B ... or wooden pallet bundle packing, paint on the pipe, plastic covers at the ends or as per customer requirement ... " to serve you! DIN 1629 st45 seamless pipe for water