Report copyright - JFE-FRJFE-FRと一般鋼の耐力比較(490N/mm2) 耐 力 217 温度 JFE-FR 一般鋼 常 温 保 証 耐 力 比 % 100 400 300 200 100 67 0 325 RT 100 200 300 350 400 500 600
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