Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials not included in other classes; products made of semi-processed plastics; packing, stopping and insulating materials; coverings for thermal insulation; insulating materials used for thermal, noise and acoustic insulation; strips, sheaths, envelopes, mattresses used for thermal insulation; non-metallic flexible pipes used for thermal insulation; materials not included in other classes used for preventing heat radiatio...

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