Design, manufacturing, and sales of industrial and mining safety components, ventilation ducts, vehicle parts, hardware tools, power tools, ropes, nets, belts, slings and rigging, fasteners, high-strength bolts; research and development, leasing, testing, and technical services of live working products and insulating materials; manufacturing, sales, and maintenance of steel wire ropes, textiles, chemical fiber ropes, pneumatic tools, manual tools, hydraulic tools and accessories, electrical equipment, mechanical equipment, labor protection products, fire-fighting equipment, hardware materials; mechanical equipment and hardware processing, metal casting and forging (excluding those restricted or prohibited by the state); manufacturing and sales of molds, electromechanical integrated products; self-operated and agent import and export of various commodities and technologies (excluding those restricted or prohibited by the state). General items: Container manufacturing; container sales; metal product research and development; metal product sales; metal structure manufacturing; metal tool manufacturing; metal structure sales; production of special labor protection products; sales of special labor protection products; sales of labor protection supplies; production of labor protection supplies; professional design services; manufacturing of general equipment (excluding special equipment); sales of metal tools.