· moisture-proof, cold-resistance, filtration Hebei NanGong AoYi Felt Co., Ltd. is a large collective enterprise which was founded in 1986.The company is located in Hebei Nangong which is famous for felt and fur. After continues many year technical development, the equipment introduction, the market development, has constructed into a fair “the industry felt, the civil felt, the chemical fiber felt, the entertainment felt, the polishing felt, the felt system components” the production technology in a body felt product specialization production enterprise.