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Wholesale of hardware products; R&D of new material technology; Domestic trade agency; Sales of machinery parts and components; Manufacture of automobile parts and accessories; Manufacture of motorbike parts and accessories; Wholesale of automobile parts and accessories; Wholesale of motorbikes and parts and accessories; Manufacture of electric power utility equipment; Moulds and moulds sales; Sales of metal products; Sales of electric equipments; Retailing of hardware products; Import and export of goods; Sales of graphene material; Sales of new type of ceramics material; Sales of inks