0 4810.22 Lightweight coated paper used for writing, printing or other graphic purposes, total weight <= 72 g/ma, coating weight <= 15 g/ma per side, on a base of which >= 50 % by weight of the total fibre content consists of fibres obtained by a mechanical process, coated on both sides with kaolin or other inorganic substances, in rolls or in square or rectangular sheets, of any size 5 4 3 2