CPC Main Group
B21C 23/00 Extruding metal; Impact extrusion
11 direct subcodes
Child Classifications
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- B21C 23/01 starting from material of particular form or shape, e.g. mechanically pre-treated (B21C23/22 takes precedence)
- B21C 23/02 Making uncoated products
- B21C 23/21 Presses specially adapted for extruding metal
- B21C 23/22 Making metal-coated products; Making products from two or more metals
- B21C 23/32 Lubrication of metal being extruded or of dies, or the like, e.g. physical state of lubricant, location where lubricant is applied