B - Operations – Transporting – 21 – B
Patent
B - Operations, Transporting
21
B
80/22
B21B 1/08 (2006.01)
Patent
CA 1114658
Abstract of the Disclosure: A beam blank for a large size H-beam is produced firstly by forming flat slab into a preformed beam blank by a two-high rolling mill and subsequently by rolling said pre- formed beam blank by a universal roughing mill.
333937
Itoh Koichi
Koshida Osamu
Nakayama Katsuichi
George H. Riches And Associates
Sumitomo Metal Industries Ltd.
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