Txoj moo

PVC ua npuas ncauj board, tseem hu ua chevron board lossis Andy board, yog ib hom tshiab ntawm cov khoom siv txuag hluav taws xob. Nws tau dhau los ua cov khoom siv kho kom zoo ...

Thaum muas PVC ua npuas ncauj board, peb yuav tsum ua tib zoo xaiv cov zoo PVC ua npuas ncauj board, ces yuav ua li cas xaiv lub zoo PVC ua npuas ncauj board? Xiao Bian tau txhe...