Paper and board. Specification for internal diameters of cores for reels Ingestion-build-86103 ISO 50021 gives guidelines for

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Paper and board. Specification for internal diameters of cores for reels Ingestion-build-86103 ISO 50021 gives guidelines for1 Scope This International Standard specifies the internal diameters and tolerances for cores recommended for general use with reels of paper and board in international trade.