Kev Taw Qhia Kev tsim cov gypsum board, tseem hu ua phab ntsa qhuav lossis plasterboard, muaj ntau yam txheej txheem tseem ceeb, suav nrog kev sib xyaw ntawm gypsum, dej, thiab cov khoom ntxiv, nrog rau kev tsim, ziab, thiab ua tiav ntawm cov laug cam. Ib qho tseem ceeb ntawm lub ...
Nyeem ntxiv