Manufacture from natural or synthetic rubber, gutta percha, balata, or gutta siak, of all kinds of rubber products such as tubes and tyres, vulcanized footwear, industrial and mechanical rubber goods, and rubber sundries such as gloves, mats, sponges and other vulcanized articles. The reclaiming of rubber from used tyres, scrap and miscellaneous waste rubber. Included are the rebuilding, retreading and vulcanizing of tyres; and dipping, mixing, rolling, cutting and related processing of natural rubber, except on rubber plantations, which is classified in group 011 (Agriculture and livestock production) or in the forest, which is classified in group 021 (Forestry).