... for various decorative purposes Magnesium oxide board,as Wall partition system,has features as follows: (1)Non-flammability: Gemtreeboard is non ... the national grade A1 standard (GB8624-2006 Grade A1). In case of fire, the board will not burn and not give ... is not high ,the board is light weight, in this case, it can decrease weight of building greatly. At the same ...