... to customer’s request4) Company profile:Nangong Dingfeng Felt Co., Ltd. is located in Nangong City,Hebei Province.Our ... Cotton Felt, Felt workpieces , Entertainment Felt,Wool Pad.The products are mainly used in mechanism, electromechanical, chemical industry, cement ... , cars, trains, ships, machine tools against dust. The products have good function in sealing, sound insulation, thermal insulation, ...