Back Groove

       Japan is a country where earthquake happens often, accidents of exterior wall tile falling off to hurt people also happened, so Japan is professional in the field of building material safety. We adopt safety technique from Japan, considering safety from the very beginning of product design, as to make swallow-tail groove, which can be as deep as 1.2mm on the tile back, so that the tile and mortar can form an in-lay construction after installation to avoid falling off.