... ASTM, BS1387-1985,GB/T3091-2008,DIN2440,JIS-G3444,EN10255 Galvanized seamless pipe1) Standard ASTM, BS1387-1985,GB/T3091-2008,DIN2440 ... :2-12m4) UsageWidely used as the pipeline of fumiture,structure,fence,industrial and civilian water,air,petroleum,natural gas, communication and ... paintingAll the production process are made under the ISO9001:2000strictly Galvanized Steel Pipe