HTS Code 6812-Fabricated asbestos fibres; mixtures with a basis of asbestos or with a basis of asbestos and magnesium carbonate; articles of such mixtures or of asbestos, e.g., thread, woven fabric, clothing, headgear, footwear, gaskets, whether or not reinforced (excluding friction material with a basis of asbestos, and articles of asbestos-cement)