Osb
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Waterproof OSB, POPLAR / HARDWOOD / PIN OSB
OSB yog Oriented strand board, yog kev kho dua tshiab ntawm cov khoom siv particleboard, nws cov khoom siv nrog cov kev taw qhia, ua kom ntev, noo noo tsis kam thiab qhov ruaj khov dua li cov particleboard zoo tib yam. Nrog me me expansion coefficient, tsis muaj distortion,