Our main business operations include: Special Equipment Manufacturing; Installation, Modification, and Repair of Special Equipment; Design of Special Equipment; Inspection and Testing of Special Equipment; Construction Engineering. (As permitted by laws and regulations, please refer to the relevant approved documents and permits for specific business operations.) General Projects: Sales of Special Equipment; Rental of Special Equipment; Sales of Metal Products; Wholesale of Hardware Products; Sales of Mechanical Parts and Components; Sales of Metal Tools; Sales of Special Labor Protection Products; Retail of Hardware Products; Sales of Rubber Products; Sales of Building Decorative Materials; Equipment Manufacturing (excluding professionally permitted equipment manufacturing); Sales of Non-Ferrous Metal Alloys; Sales of Metal Structures; Manufacturing of Metal Structures; Sales of Metal Chains and Other Metal Products; Repair of Metal Products; Sales of Gears and Gearboxes; Sales of Machinery and Equipment; Manufacturing of General Equipment (excluding special equipment manufacturing); Sales of Bearings, Gears, and Transmission Parts; Sales of Generators and Generator Sets; Sales of Lubricants; Sales of Painting Equipment; Spray Processing; Sales of Metal Wires, Cables, and Their Products; Manufacturing of Non-Ferrous Metal Alloys; Sales of Mining Machinery; Sales of Building Metal Accessories; Sales of Metal Cutting Machines; Sales of Molds; Manufacturing of Metal Tools; Sales of Metallurgical Equipment; Sales of Mechanical and Electrical Equipment; Manufacturing of Mechanical and Electrical Equipment; Sales of Casting Machinery; Sales of Environmental Protection Equipment; Equipment Repair; Casting of Non-Ferrous Metals; Manufacturing of Hardware Products; Sales of Bearings; Manufacturing of Metal Chains and Other Metal Products; Equipment Leasing; Labor Services (excluding labor dispatching).