Shenzhen Guozhihuifu Polymer Material Co., Ltd. was established in 2001, with registered capital 20 million RMB. It is a high-tech joint-stock enterprise mainly engaged in R&D, production and sale of polymer materials and new-type composite materials for environmental protection. Taking the leading position in the same industry, and now we have customers well-known both domestic and foreign, such as, Pentair, Huawei, ZTE, Foxconn, Fujitsu, Emerson and so on. Main Products Introduction: 1: Sound Insulation and Noise reduction Series -PU Sound Absorbing Foam -Melamine Sound Absorbing Foam -Polyester Sound Absorbing Foam 2: Dust Proofing Series -Mesh Polyester Foam Filter -Air Filter Quadrafoam air filters offer high dust arrestance and low resistance when installed in electronics, computer, telecom, datacom, broadband/CATV, medical^also flame retardant and meet UL 94 HF-1 standards for electronics, ROHS compliant. Promoting our products will also promote yours!