Explanatory notes
… products in the piece consisting of : (1) a layer of fabric, normally knitted or woven or of nonwovens, and a … the form of a web, of felt, of cellulose wadding, of foam plastics or of foam rubber, for example), or (2) two … this heading may be impregnated, coated or covered, or the fabrics used in their production may be impregnated, coated …