… unworked, defatted, simply prepared (but not cut to shape), treated with acid or degelatinised; powder and waste …
Explanatory notes
… unworked, defatted, simply prepared (but not cut to shape), treated with acid or degelatinised; powder and waste … processes). (2) Bones, simply prepared (but not cut to shape) , i.e., not having undergone processes extending … rectangular (including square) plates and sheets and other shapes, whether or not polished or otherwise worked, and …