Plastic processing special equipment manufacturing; Plastic processing special equipment sales; Mechanical equipment research and development; Mechanical equipment sales; Mechanical and electrical equipment manufacturing; Mechanical and electrical equipment sales; Industrial robot manufacturing; Intelligent robot research and development; Packaging special equipment manufacturing; Packaging special equipment sales; Mold manufacturing; Mold sales; General equipment repair; Special equipment repair; Electronic and mechanical equipment maintenance (excluding special equipment); Packaging materials and product sales; Metal material sales; Hardware product wholesale; Hardware product manufacturing; Electronic components and electromechanical component equipment manufacturing; Electronic components and electromechanical component equipment sales; Household appliance manufacturing; Household appliance sales; Road freight transport for general cargo vehicles with a total mass of 4.5 tons and below (excluding online freight and dangerous goods); Import and export agency; Import and export of goods; Technology import and export.