The registered address of Zhongrun Machinery Factory in Weijiazhuang Village, Weijiazhuang Town, Longyao County is located in Weijiazhuang Village, Weijiazhuang Town, Longyao County. The registration authority is the Market Supervision Administration of Longyao County, and the legal representative is Lu Shuangbo. The business scope includes sand screening machines, sand washing machines, secondary construction pumps, processing, and sales (projects that require approval by law can only be carried out after approval by relevant departments)