... manfacturing brake pads (steel fiber) steel wool is used for cleaning and removing strong stains, rust and ... grease spots on surface of metal-wares, ceramics and glasssteel wool:GRADE: 0000# , 000#, 00#, 0#; 1#, 2#, 3#, 4#PACKING ... its abrasive characteristics, it is used to clean also the glass without water or cleaners; it cleans and polishes the stainless ...