Household or kitchen utensils and containers, including (isolating) storage boxes, storage mugs and storage dishes of plastic; combs and sponges; brushes (except paint brushes); brush-making materials, articles for cleaning purposes; steelwool; unworked or semi-worked glass (except glass used in building); glassware, porcelain and earthenware not included in other classes; household and kitchenware and coverings therefor (not of precious metals, nor gilded or silver plated)