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 表1-34常用材料的KB值符号锻钢铸钢灰铸铁铸铜黄铜ZQA19—4γKB7.8517.80.996.6~7.70.84~0.948.3~8.91.05~1.138.351.067.50.955 (共 96 字) [阅读本文] >>