20 Non-metal door bolts; locks, not of metal, for vehicles; locks, other than electric, not of metal, and parts and fittings therefor, namely, non-metal tumblers, bolts, barrels; lock boxes, not of metal; hinges, not of metal; door and window handles, not of metal; handles of plastic for furniture; handles, not of metal, for furniture; non-metal door handles, namely, grab handles, not of metal, for showers or bath tubs; sealing caps, not of metal; closures for containers, non-metallic; sash fasteners, not of metal, for windows; keys of plastic or not of metal for locks; keyboards for hanging keys; door fasteners, not of metal; wood doorknobs; porcelain doorknobs; doorknobs of plastic, mother-of-pearl, meerschaum; door knockers, not of metal; door stops, not of metal or rubber; lock casings, not of metal; lock bolts, not of metal; casement bolts, not of metal, for locks; furniture, mirrors, picture frames; transport and storage containers, not of metal and not of paper; unworked or semi-worked mother-of-pearl; sea shells; meerschaum, raw or partly worked; yellow amber, raw or partly worked