... 3mm-630mm 2.Wall Thickness:1.8mm-22mm 3.High quality and exciting price ASTM A53 ERW steel pipe1. ... chemical,environmental protection,boiler,water conservancy,electrical industry,steel structure ,building and otherrelated fields.Our steel pipe has been ... look forward to steady cooperation with worldwide customers by high quality products and excellentservice. Details UsageUsed for low pressure liquid ...