Polyurethane pumice nwere ike dị elu, nchekwa okpomọkụ, mkpuchi okpomọkụ, ụda ụda, mkpuchi mmiri, ọkụ ọkụ, acid na alkali resistance, unyi na-eguzogide, corrosion resistance, enzyme resistance, na enweghị mmetọ, ọ dịghị redioactivity, wdg Ọ bụ ezigbo akwụkwọ ndụ akwụkwọ ndụ, nchebe gburugburu ebe obibi. na en...
GỤKWUO