Uncoated paper and paperboard, of a kind used for writing, printing or other graphic purposes(Weighing more than 15g/㎡, containing not more than 1% of fibres obtained by mechanical or chemi-mechanical process) 书写、印刷等用未涂布厚纸(板)(每平米重>150g，机械或化学-机械法制得的纤维含量≤10%),
