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tube and pipe rolling
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tube and pipe rolling
Encyclopedia
工学
金属管材轧制
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tube and pipe rolling
管材轧制
生产圆形和各种异形断面中空管状金属制品的轧制技术。在管材轧制中,根据管坯的变形温度不同,可分为热轧和冷轧。
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Leiden Observatory
Leiden University
Leiden University Observatory
Lei Dezu
Leif Andersson
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Lei Feng Memorial Hall in Fushun
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Lei feng's Tomb and Monument
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Leigong Paozhi Lun
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Lei Guiyuan
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