... Engineering Co., Ltd, Chonqing Zhongcheng Prefab House Co.,Ltd) is a professional manufacturer and exporter specializing in design, produce, and ... -grade and top-grade with authentication of TUV. 2) Products descriptionDZ prefabricated house is made of light steel frame, EPS andwich panels/ ... as wall panels, roof panels.Felxible layout: The position of windows and doors can be arranged at any place, ...