Gotta be in the raw material. 9 to 1 ratio of 2 different alloys in the rods. QA would mean detecting a 0.75% difference in rod weights, assuming no mixing of the alloys within the same rod.
Ron aka "Rip" for Riflecrank Internationale Permanente NRA Life Benefactor and Beneficiary .458 Winchester Magnum, Magnanimous in Victory THE WALKING DEAD does so remind me of Democrap voters. Donkeypox.