General projects: Forging and powder metallurgy products manufacturing; Refractory production; New material technology research and development; Refractory sales; Forgings and powder metallurgy products sales; Building materials sales; Sales of chemical products (excluding licensed chemical products); Metal material sales; Sales of metal products (except for items subject to approval according to law, independently carry out business activities according to law with business licenses) Permitted items: Import and export of goods; Technology import and export (for projects subject to approval according to law, business activities can only be carried out after the approval of relevant departments, the specific business projects shall be subject to the approval documents or license certificates of relevant departments)