General business items: Metallurgical special equipment manufacturing; Intelligent instrument manufacturing; Intelligent instrument sales; Instrument manufacturing; Instrument sales; Non-ferrous metal alloy manufacturing; Non-ferrous metal alloy sales; Graphite and carbon product sales; Common non-ferrous metal smelting; Refractory material production; Refractory material sales; Graphene material sales; Light building materials sales; Building waterproof roll material product sales; Building materials sales; Electrical equipment sales; Wire and cable operation; Mechanical and electrical equipment sales; Rubber products sales; Lubricating oil sales; Import and export of goods; Non-metallic mineral products manufacturing; Non-metallic ore and products sales; Non-metallic mineral material forming machinery manufacturing; Rubber products manufacturing; Plastic products manufacturing; Plastic products sales; Plastic processing special equipment sales; Steel rolling processing; Paper products manufacturing; Paper products sales; Electronic component retail; Calculator equipment sales; Hardware products retail; Special equipment sales; Electrical signal equipment device manufacturing; Electrical signal equipment device sales; Industrial internet data services; Software development; Technical services, technology development, technical consultation, technical exchange, technology transfer, technology promotion; Domestic freight transport agency; Road freight transport of general cargo vehicles with total mass of 4.5 tons and below (excluding network freight and dangerous goods); Optical instrument manufacturing; Optical instrument sales; Mobile terminal equipment manufacturing; Mobile terminal equipment sales; Industrial robot manufacturing; Industrial robot sales; Industrial robot installation and maintenance; Industrial automatic control system device manufacturing; Industrial automatic control system device sales; Intelligent control system integration; Information technology consulting services; Information system operation and maintenance services; Intelligent robot sales; Intelligent robot research and development; Special operation robot manufacturing; Digital video surveillance system manufacturing; Digital video surveillance system sales; Security equipment manufacturing; Security equipment sales; IoT equipment sales; Electronic component wholesale; Electronic component manufacturing; Environmental monitoring special instrument sales; Environmental monitoring special instrument manufacturing; Drawing, calculating and measuring instrument manufacturing; Spray gun and similar appliance manufacturing; Mechanical parts, components processing; Gear and gear reduction, gearbox manufacturing; High-speed precision gear transmission device sales; Bearing, gear and transmission component manufacturing; Metal cutting and welding equipment manufacturing; Metal chain and other metal products manufacturing; Non-ferrous metal rolling processing; Seal manufacturing