4810Paper and paperboard, coated on one or both sides with kaolin (China clay) or other inorganic substances, with or without a binder, and with no other coating, whether or not surface-colored, surface-decorated or printed, in rolls or rectangular (including square) sheets, of any size:
Paper and paperboard of a kind used for writing, printing or other graphic purposes, not containing fibers obtained by a mechanical or chemi-mechanical process or of which not more than 10 percent by weight of the total fiber content consists of such fibers: