The developer is Zhengzhou Real Estate Great Wall Real Estate Development and Management Co., Ltd.; The supervision unit is Henan Chuangda Construction Engineering Management Co., Ltd. These parties are responsible for the demolition and resettlement houses in Zhengzhou, but according to the current national laws, the supervision unit allows qualified materials to enter the site, and the construction unit carries out construction according to qualified materials. These are mostly normal procedures, and supervision units and construction units can find problems in time and stop work and dismantle them, which is the only way. Worst of all, the people who buy this brick, the people who test this brick. Fortunately, I found it before it was delivered, otherwise it would not be just property damage!