Jiaonan Jiameng Air Compressor Dealership, established on June 11, 2010, operates within the following business scope: Wholesale and retail of domestic and imported air compressors, drilling rigs, drill rods, drill bits, down-the-hole hammers, centralizers, drill pipe assemblies and complete sets of accessories, air compressor spare parts, construction materials, decoration materials, environmental protection equipment, mechanical equipment, hardware and electrical supplies, water pumps and valves, and waterproofing materials; Construction of building projects; Leasing of mechanical equipment; Sales, leasing, and maintenance of construction machinery and tools; Design and construction of interior and exterior decoration and renovation projects; Construction of exterior wall painting projects; Construction of waterproofing projects; Construction of anti-corrosion and thermal insulation projects; Construction of landscaping and greenery projects; Installation of plumbing, electrical, and heating systems; Construction of road projects; Earthworks and stonework projects; Municipal engineering projects; Pipeline installation projects (excluding the transport of hazardous chemicals via long-distance pipelines); Construction of steel structure projects; Construction of computer network projects; Construction of environmental protection projects; Construction of glass curtain wall projects; Installation of doors and windows; And other general business activities that do not require administrative approval. (For projects subject to legal approval, business activities may only be conducted after obtaining approval from the relevant authorities. )