... ripple, the big ripple, heat insulation sandwich panel,steel tile, EPS sandwich panel, color steel sandwich panel,rock wool ... pollution, sustainable use, widely applies in the villa, the industry workshop, the workshop, the warehouse and so on the construction ... and 990mm Two: color steel tile(galvanized tile)1 wave tile:width range 760mm-950mm2 wall tile:width 900mmthickness of sandwich panel 40mm ...