ERW steel pipes maker

ERW steel pipes maker 1.Standard:BS 1387-1985, ASTM A53, ASTM A513, ASTM A252-98, JIS G3444-2004 STK400/500, JIS G3452-2004, EN 10219, EN 10255-1996, DIN 2440 2.Material:Q195, Q235, Q275, Q345 3.Specification:1/2”-16” (OD: 21.3mm-406.4mm) 4.Wall thickness:1.0mm-12mm 5.Surface treatment: Galvanized, oil coating, lacquering 6.Application :Petrol, natural gas, water pipes , for transportation and construction 7.Secondary treatment: cutting, drilling, stamping, etc. Product show