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IA- grade dry (first A)
        •   4- sides clear- unacceptable heartwoods, knots, tubules
        •   occasional pin knots
        •   light colors, the material dried in a vacuum kilns- color effect as with a slight steaming
        •   occasionally there may be streaked healthy core
        •   There may be other color marks for the different species, e.g. specks, spots
        •   humidity: 10% (+ / -3%)
        •   the usual free trims are not included in the price: typically 2 mm in thickness and width and 15mm in length

IA- grade is characterized by very good quality, high efficiency (more than 93%). Ideally suited for colorless lacquer articles.