Main Products : Sales of station hydrogenation and hydrogen storage facilities, research and development of emerging energy technologies, sales of gas and liquid separation and purification equipment; manufacturing of special equipment (excluding licensed professional equipment manufacturing); manufacturing of gas and liquid separation and purification equipment; manufacturing of general equipment (excluding special equipment manufacturing); intelligent basic manufacturing equipment manufacturing; electronic special equipment manufacturing; electronic special equipment sales; electrical machinery special equipment manufacturing; new energy motive equipment manufacturing; new energy motive equipment sales; special equipment sales; goods import and export; manufacturing of special equipment for refining and chemical production; sales of special equipment for refining and chemical production; manufacturing of special equipment for refining and chemical production; manufacturing of special equipment for environmental protection; sales of metal materials; manufacturing of metal structures; repair of metal products; Metal surface treatment and heat treatment processing; steel rolling processing; metal cutting processing services; mechanical parts and parts processing; technical services, technology development, technical consultation, technical exchanges, technology transfer, technology promotion; machinery equipment leasing; non-residential real estate leasing; General cargo warehousing services (Excluding hazardous chemicals and other projects requiring licensing and approval); information technology consulting services; foreign contracting projects; enterprise management consulting; project management services; seal manufacturing; science and technology intermediary services. Licensed items: special equipment design; special equipment manufacturing; special equipment installation, transformation and repair.