Design, production and processing of measurement and drawing, optical instruments, industrial pneumatic and hydraulic auxiliaries, industrial automation control equipment, automobile and motorcycle parts, agricultural machinery and engineering machinery parts and products, related molds and jigs, wholesale and import and export business of similar products of the above products (not involving state-owned trade management commodities, involving quota and license management commodities, applications shall be handled in accordance with relevant national regulations), provision of technical consultation and after-sales service for related products, and self-owned equipment leasing business.