ERW Steel Pipe Crude oil pipelines, Natural gas pipelines, Water supply ... , API 5CT,BS1387-1985,ASTM A-53,GB/T3091-2001Grade: A, B, X42, X46, X52, X56, X60, X65 X70 PSL1 ... together with steel stripType of ERW Steel Pipe finish: Black paint on pipe, beveled or plain end with plastic cap ... .ERW Steel Pipe Application: Line pipe in oil and sewage transportation, in low pressure ...