Polyurethane pumice muaj lub zog siab, txuag hluav taws xob, rwb thaiv tsev kub, suab nrov, tsis muaj dej, tsis muaj hluav taws, acid thiab alkali tsis kam, stain kuj, corrosion kuj, enzyme kuj, thiab tsis muaj kuab paug, tsis muaj xov tooj cua, thiab lwm yam. Nws yog ib qho zoo tagnrho ntsuab, kev tiv thaiv ib puag ncig. thiab en...
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