... types of industrial felt, polishing felt special, military special items carpets, linoleum absorption, heat insulation felt, fine white felt, half-fine white felt, and a half ... wool fiber. (E) felt workpiece: Felt pad (felt seal), felt ring, felt articles, felt tube, felt wheel, felt rope, felt belt, felt shaped products. (F) Entertainment Felt: Felt painting, piano with felt, eraser with felt ...