... 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 ... 5-10 times without construction waste.Widely function: Prefab house could be used in temporary office, dormitory, warehouse ...