Air Filter Paper Specifications: 1. Basis weight: 100--280g/m? 2.Thinkness :0.35--1.2 mm. 3.Air permeability:50--1000L/m?*s. 4. Corrugated Depth :0.23mm. 5.Maximum Pore Size: 30--120 micron. 6.Plain paper and Corrugated paper according request. 7. Any size and any color. Packing: 1.Inner packing: plastic film. 2.Middle packing: Kraft paper. 3.Outer packing: plastic film. Auto filter paper Detailed Product Description Our range includes automotive filtration papers for use in: 1)Light, Medium and Heavy Duty Oil Filters, for passenger cars through to trucks, buses, and large agricultural and construction vehicles. 2)Fuel Filters for Gasoline, Petrol and Diesel Fuel systems. Light and Medium Duty Air filters for round and panel filter passenger vehicle applications. 3)Heavy Duty Air Filters for trucks, buses and the agricultural and construction vehicles.