... 3.Length:1-24m Product nameERW Welded Pipe for bridge construction S460M Out Diameter21.3mm-610mm, 1/2”-24”Wall ... etc.Quality gradeFirst class, prime, newly produced, secondary , stock etc.Material/Steel gradeA, B, X42, X46, X52, X56, X60, X65, ... cast-in-place concrete piles - for welded, riveted,or bolted construction of bridges and buildings, and for generalstructural purposes- suitable for ...