...的母公司，约翰马尼利公司持有莎伦管材公司（Sharon Tube）和阿特拉斯钢管公司（Atlas Tube）和惠特兰钢管公司（Wheatland Tube）合并后的公司。
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西班牙挤压成型钢管公司采用热挤压工艺成功地生产出双金属无缝钢管。
The bimetallic seamless steel pipes are successfully manufactured with a hot-extrusion process in Tubacex, Spain.
新系统改造后于1998年投入使用，为170无缝钢管公司达到设计产量，起到了不可替代的作用。
The new reformed system has been put into operation since 1998 and played irreplaceable role for the attainment of design yield in 170 Seamless Steel Tube Company.
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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