... Filter Bag: 1) filter bag, dust bag 2) material: Aramid China 3) multi-applications 4) OEM design Aramid Dust ... bag are well design to air filter bag, material original Yantai, Shanghai, and Suzhou, it is punched with skilled optimized ... widely used in bitumen, steel, metallurgy, nonferrous metal, construction material, coke, chemical industry, firepower electricity generation, shipbuilding, drying and ...