Heat-resistant protective tube (1) it is made to Wallace Saturday night or the wollastonite the heat-resistant inorganic powder containing at least 20% by weight, a material that combines with an additive of 15% by weight or less than 1.5% by weight. And the heat-resistant protective tube (1), wollastonite, or the aforementioned heat-resistant inorganic powder, additives and mixing water or an organic solvent of an appropriate amount by, and making the mixed materials, the pipe-shaped molded body by molding the mixed material into a tubular shape by making, dry the pipe-shaped molded body can be produced. ; Heat-resistant, protective tubes, protective tubes
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