The first DF 4d diesel shunting locomotive had passed acceptance test and put to use in local railway of Luoyang in June 1999.
1999年6月，首台东风4d型调车机车通过验收并于洛阳地方铁路正式运营。
The first DF 4d diesel shunting locomotive had passed acceptance test and put to use in local railway of Luoyang in June 1999.
1999年6月，首台东风4d型调车机车通过验收并于洛阳地方铁路正式运营。
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