... -1985,GB/T3091-2008,DIN2440,JIS-G3444,EN10255 Galvanized seamless pipe1) Standard ASTM, BS1387-1985,GB/T3091-2008,DIN2440,JIS-G3444,EN102552 ... ,air,petroleum,natural gas, communication and so on5) PackingIn bundles or according to customers' requirment6) OthersSpecial design available according to requirementAnti ...