CPC Subgroup
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
Full Title
Extruding metal; Impact extrusion > Lubrication of metal being extruded or of dies, or the like, e.g. physical state of lubricant, location where lubricant is applied