1)The wool felt products are made from raw wool. 2)wool felt performance standards: GB FZ/T25001-92. Product’s Namesheep wool felt,feltsUsageOil-Filter,Seals,Padsand Gaskets in mechanical machine,Chemical industries,Electronics,Home Appliance,Textiles, Vehicles, Shipbuilding,Army products,Energy Sources,Electrical Wires, Minerals,Construction Industry and non-ferrous metal industry.Also have the ...