1. The prefab house is low cost, durable structure, convenient relocation , and environment-protection. 2. The material of prefab house is light and easily to installation.    one 27-35 square meter housefour workers 10min finished installation, save manpower and time. 3.  We used the high quality galvanized sheet and foam as the materials of the wall and roof .So the prefab house is good for fire proofing, water proofing, etc 4. Expandable container house size: 5850*6300*2500mm