The wood board density couldn't be 10kg/m3.This is too low to the standard which should be between 60-170kg/m3 with 500-600mm in width and 40-200mm in thickness.
10kg/m3 should refer to the fiber density.
Phoenix灬LV ,你的用法是错的,这里是名词作定语,fiber 是指一种板材,如果用fibrous会引起歧义.至少我们的美国木材采购商都是用的fiber density.