PVC stair anti-plam daim kab xev

Kev siv dav: cov paib tiv thaiv kev nplua rau cov ntaiv hauv tsev so, tsev noj mov, tsev kho mob, tsev kawm ntawv, tshav dav hlau, chaw nres tsheb, chaw nres tsheb, chaw ua haujlwm, cov tsev nyob, chaw lom zem, cov paib tiv thaiv rau cov pas dej da dej, gymnasiums, chav dej, da dej, chav ua noj thiab lwm yam cov plag tsev uas yuav tsum tau tiv thaiv kev nplua qhov chaw ntawm qhov chaw.