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See Chinese contents: GB/T 13297-2021 GB/T 13297-2021: General rules of packaging, marking and quality certification for precision alloys
This Standard specifies the general requirements for the packaging, marking, storage and quality certification for precision alloys. This Standard is applicable to the packaging, marking, storage and quality certification of finished products of precision alloy hot-forged (rolled) bars and flat bars, hot-rolled wire rods and strips, cold (warm) rolled strips, cold-rolled plates, cold-drawn wires and (polished) bars, and cold-rolled (drawn) pipes.
