Kev tswj cov dej ntawm lub qhov rooj ntoo hluav taws (xws li plywood) yog qhov tseem ceeb heev, nws tuaj yeem ua rau lub qhov rooj kom muaj kev tshem tawm kom tsim nyog, kev ua haujlwm zoo thiab tsis tawg, tib lub sij hawm cov ntoo yuav tsum tau muab tso rau tom qab cov nplaim hluav taws kub hnyiab tau. siv.

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