General project: Metal structure manufacturing; Metal material manufacturing; Manufacturing of wire rope and its products; Fastener manufacturing; Metal parts for construction; Hardware product manufacturing; Building decoration, plumbing pipe parts and other building metal products; Manufacturing of metal chains and other metal products; Metal products for safety and fire protection; Photovoltaic equipment and components manufacturing; Electric power equipment manufacturing; Manufacturing of power electronic components; General purpose component manufacturing; Metal structure sales; Fastener sales; Sales of metal parts for construction; Sales of metal products; Sales of metal chains and other metal products; Metal material sales; Sales of power facilities and equipment; Sales of power electronic components; Photovoltaic equipment and components sales; Wire rope and its products sales; Hardware wholesale; Sales of machinery parts and spare parts; Building materials sales; Sales of building steel products; Machinery and equipment sales; Electrical equipment sales; Sales of plastic products; Rubber products sales; Sales of chemical products (excluding licensed chemical products); Sales of labor protection articles; Bearing sales; Metal tool sales; Import and export of goods; (The above business scope does not contain sand/sand stone, stone). (Except for the items subject to approval according to law, independently carry out business activities according to law with the business license)