... coating; Eco-friendly; Mgo board: Characteristics:Fire and water proof, hardness: 3H-6H;Colorful designs; Wearable UV coating;Bacteria ... poisonous substances and without radiation;4. Application--fire and water proof, light and hard, can be used and replaced ... Australia etc. Structure:Surface protective layers---formed of water proof layer, color pattern layer and protective layer, processed by world ...