SVEZA Interior and Exterior Plywood grades Defects Part 17: Manufacturing stains (beam traces, lines)

SVEZA Interior and Exterior Plywood grades Defects Part 17: Manufacturing stains (beam traces, lines)

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Scratch is a trace left on the material surface by a cutting tool.

This flaw is defined as a grading factor.
Manufacturing stains (beam traces, lines)
Manufacturing stains (beam traces, lines)

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