General Projects: oil refining、 Manufacturing of special equipment for chemical production, Manufacturing of special equipment for daily chemical industry, Metallurgical special equipment manufacturing, Pharmaceutical equipment manufacturing, Manufacturing of special equipment for environmental protection, Coal-fired flue gas desulfurization and denitrification equipment manufacturing, Dust removal technology equipment manufacturing, Sludge treatment equipment manufacturing, Domestic waste treatment equipment manufacturing, Metal structure manufacturing, Sealing packing manufacturing, Metal packaging containers and materials manufacturing, Metal material sales, Metal product sales, Sales of sealing packing, oil refining、 Sales of special equipment for chemical production, Fastener sales, Seal sales, Metal structure sales, Import and export of goods, Technology import and export, Import and export agent,Chemical product sales( Does not contain permitted chemical products)。( In addition to licensing business, Able to independently operate projects that are not prohibited or restricted by laws and regulations) Licensed Projects: Special equipment manufacturing。( Projects that require approval according to law, Business activities can only be carried out after approval from relevant departments, The specific business projects are subject to the approval documents or licenses of relevant departments.)