CPC Main Group
B21B 25/00 Mandrels for metal tube rolling mills, e.g. mandrels of the types used in the methods covered by group B21B17/00; Accessories or auxiliary means therefor
3 direct subcodes
Child Classifications
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- B21B 25/02 Guides, supports, or abutments for mandrels, e.g. carriages ; Adjusting devices for mandrels
- B21B 25/04 Cooling or lubricating mandrels during operation
- B21B 25/06 Interchanging mandrels