A New Decorative Material- interior decoration 1.Easy ... , non-toxic, nopeculiar smell. Incomparable Advantages 1. Gypsum is easy fragile, ERC has good strength, toughness, elasticity , ... has no interest to it.4. Real wood is heavy, gypsum is heavier, so the logistics, installation, maintenance ... and so on all is more troublesome, cost is high. ERC material is very light, the weight only ...