CPC Scheme B21B ROLLING OF METAL
Couplings, driving spindles, or spindle carriers specially adapted for, or specially arranged in, metalrolling mills (couplings or shafts in general F16) [201301] B21B 35/141 { Rigid spindle couplings, coupling boxes placed on roll necks ( rigid couplings in general F16D 1/00 ) } [201301]