pre-heat, weld quality compliance, interval distortion checks & NDT1 witnessing on back gouging of critical Perform QC inspections after welding: dimensional checks on critical components, inspection of welds prior checklists (final product punch-list & supervisor/QC check sheet) Perform QC inspections wrt line-bore: line-up evidence available for critical dims, workmanship checks (weld quality), assisting with queries, compiling