Hangzhou Qi Yun Building Technology Co., Ltd. is registered at 618 Xinggang Road, 2nd Floor, 213, Main Building, Qingshanhu Street, Lin'an District, Hangzhou City, Zhejiang Province, with the registration authority being the Lin'an District Market Supervision Administration Bureau. The legal representative is Huang Fanghui. The business scope includes: general projects such as the sale of building materials, light-weight building materials, waterproofing membrane products, building decoration materials, wholesale of hardware products, retail of hardware products, sale of doors and windows, and sale of metal products.