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Date: 2012-12-05 20:39:38Gas tungsten arc welding Tungsten Gas metal arc welding Physics Matter Boat building Rigging Stainless steel Shielded metal arc welding Arc welding Welding Mechanical engineering | National C erti f icate in Boatbuilding metal sparmaking (Level[removed]CREDITSDocument is deleted from original location. Download Document from Web Archive |