Basic on metamax and FMS, we do research and production of complexed filtering felt with fiberglass, metamax and Teflon for the dust remove machine of steel blast furnace gas and pulse gas box, this product is more suitable for dust remove of high temperature gas, it is mainly made of P84 fiber and other thin fiber. It could resist high temperature of 200-280℃, and it is also wearable, compared to other complex fiber felt, it use the way of air current and avoid metal rub, thickness odds, so the error of thickness is within 30g/m2, by this the price could be well controled, so this product is very popular with customers.