General Projects: oil refining、 Manufacturing of special equipment for chemical production, oil refining、 Sales of special equipment for chemical production, Manufacturing of special equipment for daily chemical industry, Metallurgical special equipment manufacturing, Manufacturing of special equipment for environmental protection, Pharmaceutical equipment manufacturing, Metal packaging containers and materials manufacturing, General equipment manufacturing( Excluding special equipment manufacturing), Metal structure manufacturing, Sealing packing manufacturing, Sales of sealing packing, Lubricant sales, Special equipment sales, Fastener sales, Metal product 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), Sales of coal and its 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, Special equipment design, Installation, modification and repair of special equipment。( 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.)