Special equipment installation, renovation and repair; Electrical installation services; Machinery and equipment sales; Sales of mechanical parts and spare parts; Sales of construction machinery; Sales of Marine engineering equipment; Sales of electronic components and electromechanical components; Mechanical and electrical equipment sales; Sales of power electronic components; Electrical equipment sales; Hardware products wholesale; Needle textile sales; Apparel retail; Building materials sales; Sales of building decoration materials; Sales of chemical products (excluding licensed chemical products); Sporting goods and equipment retail; Technical service, technology development, technology consultation, technology exchange, technology transfer, technology dissemination; Electrical equipment repair; Instrument repair; Special equipment repair; General equipment repair; Leasing and maintenance of port facilities and machinery; General mechanical equipment installation services;