... , carbon steel, alloy steel ,iron ,alloy, 2.Standard: ASTM\DIN\BS\JIS3.Surface finish: passivated, stain polished, mirror polished, e-coating ... , cutting head machine, shot-blasting machine, sand-blasting machine, pickling line.2.Machining facility: CNC machine, linear cutting machine, NC milling machine, polishing machine.Heat treatmentannealing, termpering ...