General projects: technical service, technology development, technology consultation, technology exchange, technology transfer, technology promotion; Hardware product research and development; Hardware product manufacturing; Hardware products wholesale; Hardware products retail; Research and development of metal products; Metal products sales; Metal tool manufacturing; Metal tool sales; Metal material manufacturing; Metal material sales; Research and development of household appliances; Household appliance manufacturing; Home appliance sales; Home appliance parts sales; Sales of daily necessities; General merchandise sales; Plastic products manufacturing; Plastic products sales; Mold manufacturing; Mold sales; Electronic components manufacturing; Electronic components retail; Mechanical equipment research and development; Metal cutting and welding equipment manufacturing; Metal cutting and welding equipment sales; Laser marking processing; CNC machine tool manufacturing; CNC machine tool sales; Metal cutting machine tool manufacturing; Metal cutting machine tool sales; General equipment manufacturing (excluding special equipment manufacturing). (Except for items subject to approval according to law, independently carry out business activities according to law with business license)