... ENVIRONMENTAL FRIENDLY 1) About us:Dingzhong Group (Chongqing Dingzhong Construction Engineering Co., Ltd, Chonqing Zhongcheng Prefab House Co., ... structure system, in accordance with the code for construction structural design.Fire retardation materials: Adopt EPS sandwich ... used in temporary office, dormitory, warehouse and differenct construction site.4) Nice house showcase and details 1. Modular ...