Nanjing Chenguang Group (南京晨光集团有限责任公司, NCGC, formerly known as Jinling Machinery Manufacturing Bureau) is a company that manufactures machinery for the defense industry. It offers precise rotary tables, two-way film stretchers, industrial vacuum sweepers, metal hoses, coal slag conveying systems for coal-fired boilers, aluminum alloys in-furnace repair scaffolds, dry slag systems, portable boiler furnace maintenance platforms, boiler furnace maintenance platforms, and other products.