From the middle of the 1970s, the enterprise started to produce the large-scale hoisting machinery equipment.

企业从上个世纪70年代中期开始生产大型起重机械设备。

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From the middle of the 1970s, the enterprise started to produce the large-scale hoisting machinery equipment.

企业从上个世纪70年代中期开始生产大型起重机械设备。

youdao