... 1, the chemical stability. Alkali, acid, water, erosion-resistant cement, and other chemical corrosion resistance; and resin bonding is strong ... insulation within the wall board, gypsum board, etc., 2) reinforced cement products (such as the Roman, flue , etc.), 3), granite ... requirements. Factory !!!!! Cheap!!!!! fiberglass gridding cloth/Fibergalss mesh used for wall/fiberglass mesh insect screen