Yuav ua kom txoj hauv kev nrog koj tus kheej txhais tes yog nyob hauv lub zog ntawm yuav luag txhua tus. Nyob ntawm nws cheeb tsam, nws tuaj yeem ua tau-hauv, nrog cov qhov rooj zawv zawg lossis qhib sab nraud. Cov khoom tseem ceeb yog tsim los ntawm sawing ntoo, hardboard, plywood lossis chipboard cov ntaub ntawv