ETL Safety CWB Weld Quality Mark Class B Transport Canada, National Safety Mark CWB CSA W47.2 / W59.2 Structural Aluminum CWB CSA W47.1 / W59 Structural Steel CWB Welding Inspector Level 1 CWB Welding Inspector Level 2 CWB Welding Specialist Tyler Abbott WSM100309 CWB Welding Supervisor 47.2 Aluminum Rob Beetstra Tyler Abbott Regan Holmes CWB welding supervisor 47.1 Steel Rob Beetstra Tyler Abbott Regan Holmes CWB division 2 Engineering Robertson Engineering Ltd.