... Chongqing Dingzhong Construction Engineering Co., Ltd, Chonqing Zhongcheng Prefab House Co.,Ltd) is a professional manufacturer and exporter specializing ... in design, produce, and assemble of prefab house, container house, modular hosue and sentry box of mid-grade ... of TUV. 2) Products descriptionDZ prefabricated house is made of light steel frame, EPS andwich panels/ rockwool board for ...