Zhengzhou Shengdian Longgang Project Design Co., Ltd.
Address: 7 16, 7th floor, Centennial Dehua Style Shopping Park, Erqi District, Zhengzhou.
B: Zhengzhou Sichuang Electric Power Design Co., Ltd.
Address: No.71Xueke Street, Zhongyuan District, Zhengzhou City
C: Zhengzhou Mingxin Model Design Co., Ltd.
Address: Near Huaihe West Road, Zhongyuan District, Zhengzhou
D: Huadian Zhengzhou Machinery Design and Research Institute Co., Ltd.
Address: No.57 Longhai Middle Road, Erqi District, Zhengzhou
All of the above are personal, and I hope they will help you.