Breadcrumb Home WLDG Welding WLDG-2447 WLDG-2447: Advanced Gas Metal Arc Welding (GMAW) Download Catalog PDF Download Page PDF Program WLDG Welding Lecture Hours 3 Lab Hours 3 Credit Hours 4 Course Type N Advanced topics in Gas Metal Arc Welding (GMAW). Includes welding in various positions. Prerequisites WLDG-1430.