SAN657-3ERW Structural STEELPIPE Product ltem: Carbon welded steel Pipe PIPE TYPE:Carbon welded Steel Pipe,ERw steel pipe,SAN657-3ERw steel pipe,SAN657-3 welded steel pipe,SAN657-3 conveyortube Manufacturing Process: High Frequency weldingouter Diameter : 101MM-213MM Ready sizes: 127MM,152MM,165MM,178MM,219MM