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  • B21D11/00
    		•  Bending not restricted to forms of material mentioned in only one of groups B21D 5/00, B21D 7/00, B21D 9/00; Bending not provided for in groups B21D 5/00-B21D 9/00; Twisting [2] HB CC 4E046
  • B21D11/02
    		•  .Bending by stretching or pulling over a die HB CC 4E046
  • B21D11/06
    		•  .Bending into helical or spiral form; Forming a succession of return bends, e.g. serpentine form HB CC 4E046
  • B21D11/07
    		•  ..Making serpentine-shaped articles by bending essentially in one plane HB CC 4E046
  • B21D11/08
    		•  .Bending by altering the thickness of part of the cross-section of the work (B21D 11/06 takes precedence) HB CC 4E046
  • B21D11/10
    		•  .Bending specially adapted to produce specific articles, e.g. leaf springs HB CC 4E046
  • B21D11/12
    		•  ..the articles being reinforcements for concrete HB CC 4E046
  • B21D11/14
    		•  .Twisting HB CC 4E046
  • B21D11/15
    		•  ..Reinforcing rods for concrete HB CC 4E046
  • B21D11/16
    		•  ..Crankshafts HB CC 4E046
  • B21D11/18
    		•  .Joggling HB CC 4E046
  • B21D11/20
    		•  .Bending sheet metal, not otherwise provided for HB CC 4E046
  • B21D11/20@A
    		•  Bending along the sheet width HB CC 4E046
  • B21D11/20@B
    		•  Heat-bending of wire material HB CC 4E046
  • B21D11/20@Z
    		•  Others HB CC 4E046
  • B21D11/22
    		•  .Auxiliary equipment, e.g. positioning devices HB CC 4E046
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