(19)

(11)

EP 0 529 014 A1

(12)

(43) Date of publication: 03.03.1993 Bulletin 1993/09 (21) Application number: 91920999.0 (22) Date of filing: 07.05.1991

(51) International Patent Classification (IPC):  B25D 17/ 11( . ) B25D 17/ 24( . ) (86) International application number: PCT/FI1991/000143 (87) International publication number: WO 1991/017870 (28.11.1991 Gazette 1991/27)

(84) Designated Contracting States: DE ES FR GB IT SE (30) Priority: 23.05.1990 FI 19900002568 (71) Applicant: OUTOKUMPU OY SF-02100 Espoo (FI)	(72) Inventors: NIEMI, Ilkka SF-15880 Hollola 3 (FI) SIPPUS, Timo SF-15870 Hollola 1 (FI) (74) Representative: Zipse + Habersack  Kemnatenstrasse 49 D-80639 München D-80639 München (DE)