... Tube, EMT conduit, Bright Welded Tube. Carbon steel ERW pipe We are specialized in produce welded Steel tubes, containing Galvanized Welded Tube, ERW ... .40-3.0mmZn coating: Max 270 g/squ meterTechnique Treatment: Cold Rolled, Annealed, Black, Bright, Galvanized, Flattening, Smooth and Deburr, Bevelled ...