In 1974 it began to produce the serial plate valves from Dalian Modular Machine Tool Research Institule.

1974年开始生产大连组合机床研究所系列的板式阀。

youdao

In 1974 it began to produce the serial plate valves from Dalian Modular Machine Tool Research Institule.

1974年开始生产大连组合机床研究所系列的板式阀。

youdao