Anyị nwere ike imepụta akwụkwọ nzacha phenol resin, maka akwụkwọ nzacha mmanụ / mmanụ. Ugbu a, anyị nwere ike iwepụta otu ụdị akwụkwọ nke koodu bụ WT32068PNCY7, nke akwụkwọ nkọwa dị ka ndị a: Grammage 195g, ikuku permeability 60L / m2, Max Pore size bụ 40μm. A na-eji akwụkwọ a na-emepụta ihe nzacha mmanụ, ọ bụrụ na ị nwere mmasị, weco...
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