朔黄铁路75 kg/m钢轨12号嵌入式组合高锰钢辙叉设计
삭황철로75 kg/m강궤12호감입식조합고맹강철차설계
Design of No. 12 Embedded Rail-bound High Manganese Steel Frog with 75 kg/m Rails Used in Shuozhou-Huanghua Railway
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