... Fireproof,waterproof,quakeproof. 3.Green Ma water proof high strength fiber cement board is mainly made from silicious material, ... calcium material and reforcing fiber through the process of slurrying,forming,high pressure steam curing, drying, surfacing ... , quartz sand, plant fiber, etc.Fireproofing features: Incombustible A-class material (GB8624-1997)Refractory High-point: 4.0 hours ...