概略介绍了美国普利茅斯钢管公司所属八个钢管车间的情况，重点介绍了该公司新建的狄塞尔轧管车间情况。
Brief descriptions are given to eight steel tube workshops in Plymouth steel Pipe corporation US, especially to a newly constructed Diescher mill workshop of the corporation.
概略介绍了美国普利茅斯钢管公司所属八个钢管车间的情况，重点介绍了该公司新建的狄塞尔轧管车间情况。
Brief descriptions are given to eight steel tube workshops in Plymouth steel Pipe corporation US, especially to a newly constructed Diescher mill workshop of the corporation.
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