Polyurethane pumice muaj lub zog siab, txuag hluav taws xob, rwb thaiv tsev kub, suab nrov, tsis muaj dej, hluav taws kub, acid thiab alkali tsis kam, stain resistance, corrosion resistance, 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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