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Carbon steel castings Gray iron castings Spheroidal graphite iron castings Blackheart malleable iron castings 鋼材の種類 Specifcation 標 準 Standard 焼入れ・焼戻し Quenching ・Tempering Yield point Tensile strength Yield point Tensile strength Type 種 類 N/mm2 N/mm2 N/mm2 N/mm2 鉄鋼材料強度表（鋳鍛造品）Material ...
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