Zhengzhou Zheng Guo Vessel Co., Ltd., Zhengzhou Boiler Co., Ltd., (Zhengzhou original boiler factory), which is the holding company, with A1, A2, C3 pressure vessel design and manufacture license permits. With several years of pressure vessel design, manufacturing experience, forming an annual output of 500 autoclave production lines, an annual output of 120 wind power tower tube production line, a low-temperature insulation equipment production lines, an annual output of 3,000 tons of non-standard pressure containers of metal production line.