Waterproof Laminate flooring, Unilin Click system, AC2,AC3,AC4,AC5 6mm,7mm,8mm, ... )Click system:Unilin click,Arc click,Single click,Double click.(4)thickness:6mm,7mm,8mm,10mm,12mm(5)size:1215*195 ... avalible(7)ISO9001,ISO14001,CE certificate V-groove crystal surface laminate flooring