Explanatory notes
… based on plaster. - Boards, sheets, panels, tiles and similar articles, not ornamented : 6809.11 … wisps of tow, etc., and generally mixed with a solution of gelatin or glue), alumed plaster (also called Keene’s cement … phosphates, etc., but in which plaster is the essential element. These articles may be dyed, varnished, waxed, …