(19)
(11) EP 1 996 738 A2

(12)

(88) Date of publication A3:
21.12.2007

(43) Date of publication:
03.12.2008 Bulletin 2008/49

(21) Application number: 07736718.3

(22) Date of filing: 23.03.2007
(51) International Patent Classification (IPC): 
C21D 8/10(2006.01)
C21D 9/14(2006.01)
 C21D 9/08(2006.01)
B21D 21/00(2006.01)
(86) International application number:
PCT/IT2007/000214
(87) International publication number:
WO 2007/108038 (27.09.2007 Gazette 2007/39)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

(30) Priority: 23.03.2006 IT MN20060021

(71) Applicant: GILCOTUBI S.R.L.
20129 Milano (IT)

(72) Inventor:
  • OMODEO SALE', Serena
    I-20133 Milano (IT)

(74) Representative: Long, Giorgio et al
Jacobacci & Partners S.p.A. Via Senato, 8
20121 Milano
20121 Milano (IT)

   


(54) PRODUCTION SYSTEM OF WELDABLE AND STAINLESS TUBULAR STRUCTURES WITH HIGH MECHANICAL STRENGTH AND PRODUCT OBTAINED THEREFROM