Sub-lance carriage fall arrest mechanism relates to an oxygen supply equipment on a top-blown oxygen converter.

副枪小车防坠落机构，涉及一种氧气顶吹转炉上的供氧设备。

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Sub-lance carriage fall arrest mechanism relates to an oxygen supply equipment on a top-blown oxygen converter.

副枪小车防坠落机构，涉及一种氧气顶吹转炉上的供氧设备。

youdao