HTS Code 6812.80 - Fabricated crocidolite asbestos fibres; mixtures with a basis of crocidolite asbestos or with a basis of crocidolite asbestos and magnesium carbonate; articles of such mixtures or of crocidolite asbestos, e.g., thread, woven fabric, clothing, headgear, footwear, gaskets, whether or not reinforced (excluding friction material with a basis of crocidolite asbestos, and articles of crocidolite asbestos-cement)