... ISO 9001 and CECMain specifications of Floor BoardFloor PanelUsed in wall corner of For 90 °, 120 °, 135 °and any other ... condition=1/3-1/5 before being assembledWatertightHorizontal folded corner buckled, vertical silicon sealant sealing upEnvironment friendlyNo asbestos, ... technology, simple tools, easy operation, quick installation. Corner Brick with Color Coating Cement and Plant Fiber