... 3.Good Function in sealing,oil absorption,dustproof NameOil and Filter Air Wool Felt GasketMaterialAustrian Fine WoolSpecification25*10*4mm,Other specification ... hardware,can play the role of oilabsorption,seal,dust-proof,damping.Keep the machine running, to extend the use of the ... industry,the felt is a very good filter material, The result was satisfactory , Use blankets filter the dust in the air and ...