Crude rubber; gutta-percha; gum, raw or semi-worked; asbestos; mica; semi-finished synthetic products made from rubber, gutta-percha, gum, asbestos, or mica in the form of powder, bars, panels and foils; building insulation; stopping and sealing materials, namely, sealing plugs made primarily from rubber; insulation paints, insulation fabrics, insulating tape and band, other than for stationery and not for medical or household purposes, insulation covers for industrial machinery, joint sealan...