When mill certificates arrive for rebar heats from an unfamiliar furnace track, how should traceability QA begin before cages are fabricated?

Choices

• (A) Warehouse by coil weight tally only
• (B) Cross-verify heat-mill chemistry reports and quarantine heats pending engineer release
• (C) Borrow bars from neighbouring sites without QA
• (D) Sample bends per crew folklore without QA plan