... are Leading Manufacturers of paper products, filtter paper, air filter paper, oil filter paper and fuel filter paper.. Product Description Our ... ". The products include filter paper, non-woven cloth, filter cleaner, filter element materials, filter element machinery and elementary ... a lot Mr. Hagon Moblie:15032163427 Shijiazhuang Kelin Filter Paper Co, LtdWestside of Nanbaitanqiao, Cangshi Road, ...