ES2140874T3 - Metodo para la fabricacion de un fleje de acero conformable. - Google Patents
Metodo para la fabricacion de un fleje de acero conformable.Info
- Publication number
- ES2140874T3 ES2140874T3 ES96922894T ES96922894T ES2140874T3 ES 2140874 T3 ES2140874 T3 ES 2140874T3 ES 96922894 T ES96922894 T ES 96922894T ES 96922894 T ES96922894 T ES 96922894T ES 2140874 T3 ES2140874 T3 ES 2140874T3
- Authority
- ES
- Spain
- Prior art keywords
- temperature
- pct
- slab
- strip
- manufacture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
- B21B1/463—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a continuous process, i.e. the cast not being cut before rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0421—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the working steps
- C21D8/0426—Hot rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0081—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
- C21D9/48—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing sheets
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/68—Furnace coilers; Hot coilers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B1/30—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process
- B21B1/32—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work
- B21B1/34—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work by hot-rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2201/00—Special rolling modes
- B21B2201/02—Austenitic rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2201/00—Special rolling modes
- B21B2201/04—Ferritic rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2201/00—Special rolling modes
- B21B2201/16—Two-phase or mixed-phase rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B9/00—Measures for carrying out rolling operations under special conditions, e.g. in vacuum or inert atmosphere to prevent oxidation of work; Special measures for removing fumes from rolling mills
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
- C21D1/76—Adjusting the composition of the atmosphere
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Physics & Mathematics (AREA)
- Metal Rolling (AREA)
- Winding, Rewinding, Material Storage Devices (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Wire Processing (AREA)
- Manufacturing Of Electric Cables (AREA)
- Nonmetallic Welding Materials (AREA)
- Coating With Molten Metal (AREA)
- Heat Treatment Of Articles (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
UN METODO PARA LA FABRICACION DE UN FLEJE DE ACERO MOLDEABLE INCLUYE LAS ETAPAS DE (I) TRANSFORMACION DE ACERO LIQUIDO POR COLADA CONTINUA EN UN LINGOTE DE ESPESOR NO SUPERIOR A 100 MM, (II) LAMINADO DEL LINGOTE EN LA REGION AUSTENITICA TRANSFORMANDOLO EN UN LINGOTE INTERMEDIO DE ESPESOR COMPRENDIDO ENTRE 5 Y 20 MM, (III) LAMINADO DEL LINGOTE INTERMEDIO POR DEBAJO DE LA TEMPERATURA RR3, (IV) MANTENIMIENTO DEL LINGOTE INTERMEDIO EN UN LUGAR CERRADO PARA HOMOGENEIZACION DE LA TEMPERATURA, (V) LAMINADO DEL LINGOTE INTERMEDIO TRANSFORMANDOLO EN UN FLEJE, CON AL MENOS UN PASO DE LAMINACION REDUCIENDO EL ESPESOR MAS DEL 50 % A UNA TEMPERATURA INFERIOR A TT Y SUPERIOR A 200 C, SIENDO TT LA TEMPERATURA A LA CUAL EL 75 % DEL ACERO SE CONVIERTE EN FERRITA Y (VI) ENFRIAMIENTO DE DICHO FLEJE A UNA TEMPERATURA SUPERIOR A 500 C. SE CONSIGUEN VENTAJAS POR LA SIMPLICIDAD DEL METODO Y EL EQUIPO REQUERIDO.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1000694A NL1000694C2 (nl) | 1995-06-29 | 1995-06-29 | Werkwijze en inrichting voor het vervaardigen van een vervormbare stalen band. |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2140874T3 true ES2140874T3 (es) | 2000-03-01 |
Family
ID=19761248
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES96922894T Expired - Lifetime ES2140874T3 (es) | 1995-06-29 | 1996-06-28 | Metodo para la fabricacion de un fleje de acero conformable. |
Country Status (20)
Country | Link |
---|---|
US (1) | US6053996A (es) |
EP (1) | EP0841993B1 (es) |
JP (1) | JP2970941B2 (es) |
KR (1) | KR100250074B1 (es) |
CN (1) | CN1146479C (es) |
AT (1) | ATE187106T1 (es) |
AU (1) | AU696987B2 (es) |
BR (1) | BR9609459A (es) |
CA (1) | CA2225752C (es) |
CZ (1) | CZ290571B6 (es) |
DE (1) | DE69605424T2 (es) |
ES (1) | ES2140874T3 (es) |
MX (1) | MX9800028A (es) |
NL (1) | NL1000694C2 (es) |
PL (1) | PL180228B1 (es) |
RU (1) | RU2138344C1 (es) |
SK (1) | SK283010B6 (es) |
UA (1) | UA57707C2 (es) |
WO (1) | WO1997001402A1 (es) |
ZA (1) | ZA965576B (es) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1007739C2 (nl) * | 1997-12-08 | 1999-06-09 | Hoogovens Staal Bv | Werkwijze en inrichting voor het vervaardigen van een stalen band met hoge sterkte. |
CZ297580B6 (cs) * | 1996-12-19 | 2007-02-07 | Hoogovens Staal B. V. | Zpusob výroby ocelového pásu |
NL1007731C2 (nl) * | 1997-12-08 | 1999-06-09 | Hoogovens Staal Bv | Werkwijze en inrichting voor het vervaardigen van een ferritisch gewalste stalen band. |
ATE244078T1 (de) * | 1999-04-07 | 2003-07-15 | Giovanni Arvedi | Integriertes kontinuierliches stranggiess- und inline warmwalzverfahren sowie entsprechendes verfahren mit zwischenwickeln und abwickeln des vorstreifens |
DE10100649A1 (de) * | 2001-01-09 | 2002-07-11 | Nexans France S A | Verfahren zur Herstellung eines vieldrähtigen Leiters |
DE10203711A1 (de) * | 2002-01-31 | 2003-08-14 | Sms Demag Ag | Verfahren und Anlage zur Herstellung von Warmband aus austenitischen nichtrostenden Stählen |
US7485255B2 (en) * | 2004-08-31 | 2009-02-03 | Novelis, Inc. | Self-annealing enclosure |
ATE461763T1 (de) * | 2004-10-28 | 2010-04-15 | Giovanni Arvedi | Verfahren und produktionsanlage zur herstellung von heissen ultradünnen stahlbändern mit zwei anlagen zum stranggiessen für eine einzelne kontinuierliche waltzstrasse |
KR101332196B1 (ko) * | 2008-12-09 | 2013-11-25 | 에스엠에스 지마크 악티엔게젤샤프트 | 금속 스트립 제조 방법 및 이 방법을 실행하기 위한 생산 시스템 |
WO2010118030A1 (en) * | 2009-04-06 | 2010-10-14 | John Littleton | Temperature controlled conducting device |
EP2336344A1 (en) * | 2009-12-21 | 2011-06-22 | Sekab E-Technology AB | Pre-treatment of cellulosic material |
DE102010016945C5 (de) * | 2010-05-14 | 2013-10-17 | Kirchhoff Automotive Deutschland Gmbh | Verfahren zur Herstellung eines Formteiles |
RU2735308C1 (ru) * | 2019-07-24 | 2020-10-29 | Федеральное государственное автономное образовательное учреждение высшего образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина" | Способ термомеханической обработки |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE923134C (de) * | 1952-04-15 | 1955-02-03 | Asea Ab | Verfahren zum Gluehen von Bandmaterial |
JPS5677321A (en) * | 1979-11-28 | 1981-06-25 | Kanto Yakin Kogyo Kk | Energy saving type atmosphere furnace for metal heat treatment |
JPS6289501A (ja) * | 1985-10-14 | 1987-04-24 | Nippon Kokan Kk <Nkk> | スケ−ルフリ−鋳造圧延設備 |
JPS62114701A (ja) * | 1985-11-12 | 1987-05-26 | Kawasaki Steel Corp | 薄スラブのスケ−ル生成抑制方法 |
NL8702050A (nl) * | 1987-09-01 | 1989-04-03 | Hoogovens Groep Bv | Werkwijze en inrichting voor de vervaardiging van bandvormig vervormingsstaal met goede mechanische en oppervlakte-eigenschappen. |
BE1002093A6 (fr) * | 1988-07-11 | 1990-06-26 | Centre Rech Metallurgique | Procede de fabrication d'une bande mince en acier par laminage a chaud. |
NL8802892A (nl) * | 1988-11-24 | 1990-06-18 | Hoogovens Groep Bv | Werkwijze voor het vervaardigen van vervormingsstaal en band vervaardigd daarmee. |
JPH02268904A (ja) * | 1989-04-10 | 1990-11-02 | Sumitomo Metal Ind Ltd | ライン分割による熱延鋼板製造方法 |
JPH0466203A (ja) * | 1990-07-06 | 1992-03-02 | Sumitomo Metal Ind Ltd | 薄スケール熱延鋼帯の製造方法 |
NL9100911A (nl) * | 1991-03-22 | 1992-10-16 | Hoogovens Groep Bv | Inrichting en werkwijze voor het vervaardigen van warmgewalst staal. |
DE69227548T2 (de) * | 1991-07-17 | 1999-07-29 | Centre Rech Metallurgique | Verfahren zur Herstellung eines dünnen Bandes aus Weichstahl |
BE1007790A6 (fr) * | 1993-12-20 | 1995-10-24 | Centre Rech Metallurgique | Procede pour fabriquer une bande mince en acier doux laminee a froid pour l'emboutissage. |
-
1995
- 1995-06-29 NL NL1000694A patent/NL1000694C2/nl not_active IP Right Cessation
-
1996
- 1996-06-28 RU RU98101498A patent/RU2138344C1/ru not_active IP Right Cessation
- 1996-06-28 EP EP96922894A patent/EP0841993B1/en not_active Expired - Lifetime
- 1996-06-28 PL PL96324283A patent/PL180228B1/pl not_active IP Right Cessation
- 1996-06-28 AT AT96922894T patent/ATE187106T1/de not_active IP Right Cessation
- 1996-06-28 MX MX9800028A patent/MX9800028A/es not_active IP Right Cessation
- 1996-06-28 UA UA98010452A patent/UA57707C2/uk unknown
- 1996-06-28 BR BR9609459-1A patent/BR9609459A/pt not_active IP Right Cessation
- 1996-06-28 WO PCT/EP1996/002874 patent/WO1997001402A1/en active IP Right Grant
- 1996-06-28 CA CA002225752A patent/CA2225752C/en not_active Expired - Fee Related
- 1996-06-28 JP JP9504181A patent/JP2970941B2/ja not_active Expired - Fee Related
- 1996-06-28 DE DE69605424T patent/DE69605424T2/de not_active Expired - Fee Related
- 1996-06-28 ES ES96922894T patent/ES2140874T3/es not_active Expired - Lifetime
- 1996-06-28 CN CNB961951427A patent/CN1146479C/zh not_active Expired - Fee Related
- 1996-06-28 AU AU63600/96A patent/AU696987B2/en not_active Ceased
- 1996-06-28 KR KR1019970709980A patent/KR100250074B1/ko not_active IP Right Cessation
- 1996-06-28 CZ CZ19974169A patent/CZ290571B6/cs not_active IP Right Cessation
- 1996-06-28 SK SK1789-97A patent/SK283010B6/sk unknown
- 1996-06-28 US US08/981,612 patent/US6053996A/en not_active Expired - Fee Related
- 1996-07-01 ZA ZA965576A patent/ZA965576B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
EP0841993A1 (en) | 1998-05-20 |
SK178997A3 (en) | 1998-09-09 |
PL180228B1 (pl) | 2001-01-31 |
AU696987B2 (en) | 1998-09-24 |
DE69605424T2 (de) | 2000-06-08 |
NL1000694C2 (nl) | 1997-01-08 |
JPH10511609A (ja) | 1998-11-10 |
EP0841993B1 (en) | 1999-12-01 |
SK283010B6 (sk) | 2003-02-04 |
CN1189789A (zh) | 1998-08-05 |
CZ416997A3 (cs) | 1999-03-17 |
BR9609459A (pt) | 1999-10-13 |
CN1146479C (zh) | 2004-04-21 |
JP2970941B2 (ja) | 1999-11-02 |
ZA965576B (en) | 1997-01-29 |
CA2225752A1 (en) | 1997-01-16 |
CZ290571B6 (cs) | 2002-08-14 |
UA57707C2 (uk) | 2003-07-15 |
KR19990028657A (ko) | 1999-04-15 |
RU2138344C1 (ru) | 1999-09-27 |
MX9800028A (es) | 1998-03-31 |
PL324283A1 (en) | 1998-05-11 |
US6053996A (en) | 2000-04-25 |
DE69605424D1 (de) | 2000-01-05 |
KR100250074B1 (ko) | 2000-04-01 |
WO1997001402A1 (en) | 1997-01-16 |
ATE187106T1 (de) | 1999-12-15 |
CA2225752C (en) | 2001-05-29 |
AU6360096A (en) | 1997-01-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
IT1244295B (it) | Processo ed impianto per l'ottenimento di nastri di acciaio avvolti, aventi caratteristiche di laminati a freddo ottenuti direttamente in linea di laminazione a caldo | |
ES2140874T3 (es) | Metodo para la fabricacion de un fleje de acero conformable. | |
ATE442925T1 (de) | Ein stahlherstellungsverfahren | |
ATE240166T1 (de) | Walzverfahren und walzstrasse für dünne flacherzeugnisse | |
ATE179640T1 (de) | Verfahren und vorrichtung zur herstellung von stahlband mit kaltwalzeigenschaften | |
DE69833447D1 (de) | Verfahren zur herstellung eines warmgewalzten stahlbandes | |
BR9801552A (pt) | Processo de fabricação de tiras finas de aço inoxidável ferrítico e tiras finas assim obtidas | |
ES2196628T3 (es) | Procedimiento y dispositivo para producir una banda de acero de alta resistencia. | |
ATE199404T1 (de) | Verfahren zur erzeugung von warmbreitband | |
DE69620649T2 (de) | Verfahren und anlage zur herstellung von tiefziehstahlband aus stahlblech | |
DE50202344D1 (de) | Verfahren zur herstellung von nichtkornorientiertem elektroblech | |
AU1149200A (en) | Method and device for producing hot-rolled strips and plates | |
JPS5635726A (en) | Production of mild cold steel plate for press by continuous annealing | |
ES2155285T3 (es) | Laminacion en caliente de banda de acero. | |
JPS56152943A (en) | Soft hot rolled steel plate by continuous casting | |
MY125899A (en) | Process and device for producing a ferritically rolled steel strip |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
Ref document number: 841993 Country of ref document: ES |