Grading Rules

Grading Rules

SVEZA Interior and Exterior Plywood grades Defects Part 31:Sound discoloration (false heartwood)

SVEZA Interior and Exterior Plywood grades Defects Part 31:Sound discoloration (false heartwood) http://baza.sveza.ru/eng/index.php?pid=2&pr=2&id=12&def_id=12&full=1 Sound discoloration (false heartwood) Back False heartwood is dark unevenly colored heartwood separated from sapwood with a dark (less often light) margin, has the same hardness as the surrounding wood. Its boundary usually does not coincide with …

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