Hot dip Galvanized Pipe API 5L, API 5CT, ASTM A53 Grade A/B, BS1387, FROM 11/2" TO 10" ERW STEEL PIPES. Hot dip Galvanized Pipe API 5L, API 5CT, ASTM A53 Grade A/B, BS1387, FROM 11/2" TO 10" ERW STEEL PIPESFeatures: 1) Type: API 5L, API 5CT, ASTM A53 Grade A/B, BS1387pipes2) Outer diameter: 33.4 - 273mm3) Wall thickness: 2~12mm4) Length: 6M~12M Hot dip Galvanized Pipe