1. Small and low-cost. 2. Easy to assemble, time and labor saving. 3. Nice ... , sentry box, guard house and etc. Characteristics: Flexible dimension, lower cost, quick fabrication, easy delivery, fast installation, Reliable aseismic, good insulation ... .s)Water Absorptivity:1.05%Fire proof :B2 grade.Live load capacity of roofing: 0.5kn/m2Wind speed resistance:86.4km ...