Welding Email to a Friend Need to write your welding industry exams? George Brown College offers the following Structural Welder exams: EX 9006 CWB Welding Certification Exam: 1 Position EX 9007 CWB Welding Certification Exam: 2 Positions EX 9008 CWB Welding Certification Exam: 3 Positions EX 9009 CWB Welding Certification Exam: 4 Positions Courses Browse this complete list of Welding courses. Review a certificate's web page to see its required courses. WELD 9045 Red Seal Welder Exam Preparation Online