... cement and wood. This new environmentally friendly building material is light, highly tensile, long lasting, rotten-resistant, and fireproof ... wood 3) Is a new environmentally friendly building material with light, highly tensile, long lasting, rotten-resistant, fireproof, waterproof, ... ≥0.5 5) Resistance to impact (500g hammer weight, 12mm board thickness): dropping from 1 100mm meter and has no ...