Masonry Layout

China Solid Wood Flooring Inspection and grading rules

Solid Wood Flooring : OAKItemsFaceBackgrae Agrade Bgrade CDSound KnotsФ<3㎜ Length≤500㎜≤2pcsФ≤8mm Length≤500≤2pcsФ≤20㎜ UnlimitedUnlimitedDead KnotsNot allowedФ≤4㎜ Length≤500≤1pcsФ≤10㎜≤5pcsФ≤20㎜ UnlimitedWorm HoleNot allowedNot allowedФ≤2㎜≤5pcs …

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