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(11)

EP 1 625 240 A1

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(43) Date of publication: 15.02.2006 Bulletin 2006/07 (21) Application number: 03725183.2 (22) Date of filing: 09.05.2003

(51) International Patent Classification (IPC):  C21D 1/58(2000.01) C21D 1/56(2000.01) (86) International application number: PCT/EP2003/004882 (87) International publication number: WO 2004/099450 (18.11.2004 Gazette 2004/47)

(84) Designated Contracting States: DE IT (71) Applicant: A. & A. FRATELLI PARODI S.R.L. 16014 Campomorone (IT)	(72) Inventors: PARODI, Augusto I-16167 Genova (IT) MARINI, Leandro I-16014 Ceranesi (IT) MATTA, Felice I-14021 Buttigliera d'Asti (IT) (74) Representative: Gervasi, Gemma  Notarbartolo & Gervasi GmbH, Bavariaring 21 80336 München 80336 München (DE)