... Fireproof . use for partition boad Specification:Raw material: Magnesium oxide , magnesium chloride ,fiber glass ,perlite ,wood fiber etc . ... :confirming to GB6566-2001 A-Class.Specifications:Raw material:Magnesium oxide , magnesium chloride ,fiber glass ,perlite ,wood fiber etc ... dividers baseboards ,truck cabinets and billboards etc . Magnesium oxide panel , Fireproof magnesium oxide sheet