... concrete block/cement block Base Material: bambooLayers: 3-11 layers in bambooBonding Glue: WBP (phenolic glue)Film(Coating): Red,Brown, ... paper)Edge Treatment: Red,green or other color arcylic paint in order to against moistureThickness: 6mm,9mm,12mm,15mm,18mm,21mm,25mm,28mm ... the surface wear: ≤0.07g/100rUse time: 20-50 times(Use time is based on handing,environment,maintenance and systems) bamboo ...