Changtong Hengji Technology Co., Ltd.

International Industry Category: Scientific research and technical services

International Industry Major Class: Technology promotion and application services

International Industry Middle Class: Technology promotion services

International Industry Sub Class: Other technology promotion services

General Projects： Intelligent control system integration； Information system operation and maintenance services； Network Technology Services； Cloud computing equipment technical services；Computer and communication equipment rental； Rental Services（ No licensed rental services）；5G Communication technology services； electronic、 Mechanical equipment maintenance（ Excluding special equipment）； Sales of distribution switch control equipment； Sales of radio and television transmission equipment； Land use rights lease； Information technology consulting services； Mobile communication equipment sales； Network equipment sales； Landscaping project construction； General mechanical equipment installation services； Information system integration services； Metal product sales； General equipment repair【 Branch operations】； Engineering Management Services； Domestic freight forwarding； loading and unloading； Charging pile sales； Import and export of goods； Technology import and export； Sales of non-metallic minerals and products； Residents' daily life services； General equipment manufacturing（ Excluding special equipment manufacturing）【 Branch operations】； Foreign contracting projects； Sales of high-performance fibers and composite materials； Sales of glass fiber and products； Sales of metal matrix composites and ceramic matrix composites； Synthetic material sales； Machinery and equipment sales； Power facility equipment sales； New material technology research and development； Construction machinery sales； Sales of metal parts for construction； Hardware wholesale； Bio-based material technology research and development； Enterprise Management Consulting； Information consulting services（ No licensing information consulting services）； Internet of Things Technology Services； Public utility management services； Sales of glass fiber reinforced plastic products； Metal structure manufacturing； High-performance fiber and composite material manufacturing【 Branch operations】； Conference and Exhibition Services； Professional design services； graphic design。（ Except for projects that require approval according to law， Carry out business activities independently in accordance with the law with a business license） Licensed Projects： Construction project construction； Power transmission、 powered by、 Installation of receiving power facilities、 Maintenance and testing； Residential interior decoration； Electrical installation services； Building intelligent system design； Real estate development and operation； Installation, modification and repair of special equipment； Construction labor subcontracting； Category II value-added telecommunications services； Internet Information Services； call center； Mineral resource exploration。（ 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.）

Chinese Industry Category: Construction Industry

Chinese Industry Major Class: Construction Engineering

Chinese Industry Middle Class: Building installation engineering

Chinese Industry Sub Class: Electrical installation engineering