BE827078A - Fil de soudage comprenant une ame de poudre et une enveloppe tubulaire metallique, et son procede de fabrication - Google Patents
Fil de soudage comprenant une ame de poudre et une enveloppe tubulaire metallique, et son procede de fabricationInfo
- Publication number
- BE827078A BE827078A BE154666A BE154666A BE827078A BE 827078 A BE827078 A BE 827078A BE 154666 A BE154666 A BE 154666A BE 154666 A BE154666 A BE 154666A BE 827078 A BE827078 A BE 827078A
- Authority
- BE
- Belgium
- Prior art keywords
- manufacturing process
- welding wire
- powder core
- metal tubular
- tubular enclosure
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000000843 powder Substances 0.000 title 1
- 238000003466 welding Methods 0.000 title 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
- B23K35/0261—Rods, electrodes, wires
- B23K35/0266—Rods, electrodes, wires flux-cored
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0222—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in soldering, brazing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0222—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in soldering, brazing
- B23K35/0227—Rods, wires
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0222—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in soldering, brazing
- B23K35/0244—Powders, particles or spheres; Preforms made therefrom
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
- B23K35/0261—Rods, electrodes, wires
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
- B23K35/406—Filled tubular wire or rods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
- B23K35/406—Filled tubular wire or rods
- B23K2035/408—Filled tubular wire or rods with welded longitudinal seam
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12014—All metal or with adjacent metals having metal particles
- Y10T428/12028—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.]
- Y10T428/12063—Nonparticulate metal component
- Y10T428/12097—Nonparticulate component encloses particles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nonmetallic Welding Materials (AREA)
- Metal Extraction Processes (AREA)
- Powder Metallurgy (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7417830A FR2271898B1 (OSRAM) | 1974-05-22 | 1974-05-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE827078A true BE827078A (fr) | 1975-09-24 |
Family
ID=9139161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE154666A BE827078A (fr) | 1974-05-22 | 1975-03-24 | Fil de soudage comprenant une ame de poudre et une enveloppe tubulaire metallique, et son procede de fabrication |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US4048705A (OSRAM) |
| JP (1) | JPS50160149A (OSRAM) |
| BE (1) | BE827078A (OSRAM) |
| CH (1) | CH591308A5 (OSRAM) |
| DE (1) | DE2515342C3 (OSRAM) |
| ES (2) | ES212576Y (OSRAM) |
| FR (1) | FR2271898B1 (OSRAM) |
| GB (1) | GB1485571A (OSRAM) |
| IT (1) | IT1035793B (OSRAM) |
| NL (1) | NL181087C (OSRAM) |
| SE (1) | SE423603B (OSRAM) |
| SU (1) | SU622390A3 (OSRAM) |
| ZA (1) | ZA751905B (OSRAM) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3113257A1 (fr) * | 2020-08-07 | 2022-02-11 | Sobracore | Procede pour la realisation d’un fil de brasure et fil de brasure en resultant |
Families Citing this family (55)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5354111A (en) * | 1976-10-28 | 1978-05-17 | Hitachi Cable Ltd | Production of wire additive for steel |
| DE2719357A1 (de) * | 1977-04-30 | 1978-11-09 | Kjellberg Esab Gmbh | Verfahren zur herstellung von fuelldraehten und fuelldrahtelektroden |
| FR2397915A1 (fr) * | 1977-07-18 | 1979-02-16 | Arbed | Fil de soudage fourre et procede pour sa fabrication |
| NL173491C (nl) * | 1978-01-19 | 1984-02-01 | Ver Buizenfab | Werkwijze en inrichting voor het continu vervaardigen van met poeder gevulde gelaste buis. |
| FR2445751A1 (fr) * | 1979-01-03 | 1980-08-01 | Alliages Frittes Sa | Electrodes fourrees pour rechargement dur |
| US4214145A (en) * | 1979-01-25 | 1980-07-22 | Stoody Company | Mild steel, flux-cored electrode for arc welding |
| US4324588A (en) * | 1979-08-17 | 1982-04-13 | Engelhard Corporation | Arc erosion resistant composite materials and processes for their manufacture |
| AT374397B (de) * | 1980-07-21 | 1984-04-10 | Puschner Manfred Dr | Verfahren zur kontinuierlichen herstellung von fuelldraehten, fuelldrahtelektroden od. dgl. |
| US4423119A (en) * | 1981-11-05 | 1983-12-27 | Brown Roger K | Composite wire for forming wear resistant coatings, and method of manufacture |
| JPS58184099A (ja) * | 1982-04-23 | 1983-10-27 | Daido Steel Co Ltd | 複合溶接線材の製造方法 |
| SE8304658L (sv) * | 1983-08-29 | 1985-03-01 | Werner Adolf Holmgren | Forfarande och anordning for kontinuerlig tillverkning av pulverfylld svetselektrod |
| ATE31496T1 (de) * | 1984-04-18 | 1988-01-15 | Oerlikon Buehrle Schweisstech | Verfahren und vorrichtung zur kontinuierlichen herstellung eines folldrahtes. |
| ATE31653T1 (de) * | 1984-04-18 | 1988-01-15 | Oerlikon Buehrle Schweisstech | Fuelldraht. |
| JPS62118990A (ja) * | 1985-11-18 | 1987-05-30 | Daido Metal Kogyo Kk | 摺動部材用複合材料の製造方法 |
| DE3542663A1 (de) * | 1985-12-03 | 1987-06-04 | Boehler Ag | Schweisszusatzwerkstoff und verfahren zur herstellung desselben |
| NL8603032A (nl) * | 1986-11-28 | 1988-06-16 | Rijnstaal Bv | Met poeder gevulde gelaste stalen buis en werkwijze voor het continu vervaardigen daarvan. |
| JPH03501365A (ja) * | 1988-07-26 | 1991-03-28 | インスチテュート エレクトロスヴァルキ イメニ イー オー パトナ アカデミイナウク ウクラインスコイ エスエスアール | 電極ワイヤ |
| US5755299A (en) * | 1995-08-03 | 1998-05-26 | Dresser Industries, Inc. | Hardfacing with coated diamond particles |
| US5609286A (en) * | 1995-08-28 | 1997-03-11 | Anthon; Royce A. | Brazing rod for depositing diamond coating metal substrate using gas or electric brazing techniques |
| US5821500A (en) * | 1997-02-11 | 1998-10-13 | Nippon Steel Welding Products & Engineering Co., Ltd. | Process for manufacturing welding wire |
| US5957365A (en) * | 1997-03-03 | 1999-09-28 | Anthon; Royce A. | Brazing rod for depositing diamond coating to metal substrate using gas or electric brazing techniques |
| JP2988890B2 (ja) * | 1997-07-18 | 1999-12-13 | 株式会社ツーデン | 直線移動機構のエネルギー、信号及び/又は物質の供給方法及び装置 |
| RU2119419C1 (ru) * | 1997-07-24 | 1998-09-27 | Акционерное общество открытого типа "Череповецкий сталепрокатный завод" | Способ изготовления герметичной порошковой проволоки |
| US6138779A (en) * | 1998-01-16 | 2000-10-31 | Dresser Industries, Inc. | Hardfacing having coated ceramic particles or coated particles of other hard materials placed on a rotary cone cutter |
| US6170583B1 (en) | 1998-01-16 | 2001-01-09 | Dresser Industries, Inc. | Inserts and compacts having coated or encrusted cubic boron nitride particles |
| US6102140A (en) * | 1998-01-16 | 2000-08-15 | Dresser Industries, Inc. | Inserts and compacts having coated or encrusted diamond particles |
| JP4402253B2 (ja) * | 2000-04-25 | 2010-01-20 | 株式会社ミハマ | 締め付けバンドの製造装置及び製造方法 |
| US6428596B1 (en) | 2000-11-13 | 2002-08-06 | Concept Alloys, L.L.C. | Multiplex composite powder used in a core for thermal spraying and welding, its method of manufacture and use |
| US6513728B1 (en) | 2000-11-13 | 2003-02-04 | Concept Alloys, L.L.C. | Thermal spray apparatus and method having a wire electrode with core of multiplex composite powder its method of manufacture and use |
| US6674047B1 (en) | 2000-11-13 | 2004-01-06 | Concept Alloys, L.L.C. | Wire electrode with core of multiplex composite powder, its method of manufacture and use |
| DE10151827A1 (de) * | 2001-10-20 | 2003-04-30 | Nexans | Verfahren zur kontinuierlichen Herstellung eines längsnahtgeschweissten Metallrohres |
| GB0302399D0 (en) * | 2003-02-03 | 2003-03-05 | Rolls Royce Plc | Laser deposition |
| JP3959385B2 (ja) * | 2003-08-26 | 2007-08-15 | 株式会社神戸製鋼所 | 溶接用ソリッドワイヤの製造方法 |
| US8604390B2 (en) * | 2004-10-13 | 2013-12-10 | Hobart Brothers Company | Weld wire electrode for gas metal arc welding |
| US7807948B2 (en) * | 2005-05-16 | 2010-10-05 | Lincoln Global, Inc. | Cored welding electrode and method of manufacturing the same |
| US9643284B2 (en) | 2005-06-10 | 2017-05-09 | National Institute For Materials Science | Welding wire and welding method |
| US20090039065A1 (en) * | 2005-06-10 | 2009-02-12 | Terumi Nakamura | Welding wire and welding method |
| FR2897549B1 (fr) * | 2006-02-20 | 2009-02-06 | Air Liquide | Procede de fabrication de tubes remplis de poudres, tels des fils fourres de soudage |
| US8656587B2 (en) * | 2006-07-07 | 2014-02-25 | Revwires Llc | Method and apparatus for making cored wire |
| US20100084388A1 (en) * | 2008-10-06 | 2010-04-08 | Lincoln Global, Inc. | Welding electrode and method of manufacture |
| US20120181255A1 (en) * | 2011-01-13 | 2012-07-19 | Bruck Gerald J | Flux enhanced high energy density welding |
| US9004969B2 (en) | 2011-10-24 | 2015-04-14 | Federal-Mogul Ignition Company | Spark plug electrode and spark plug manufacturing method |
| FR2985207B1 (fr) * | 2012-01-03 | 2015-04-17 | Fro Air Liquide Welding Italia S P A | Procede et installation de fabrication de fil fourre par soudage laser avec protection mecanique du flux |
| KR101435194B1 (ko) * | 2012-04-26 | 2014-09-01 | 주식회사 세아에삽 | 플럭스 코어드 용접 와이어와 그의 제조 방법 및 장치 |
| US9130358B2 (en) | 2013-03-13 | 2015-09-08 | Federal-Mogul Ignition Company | Method of manufacturing spark plug electrode material |
| CN105283954B (zh) | 2013-05-03 | 2018-12-18 | 霍尼韦尔国际公司 | 用于无铅焊料连接的引线框架结构 |
| US20150151387A1 (en) * | 2013-12-04 | 2015-06-04 | Honeywell International Inc. | Zinc-based lead-free solder compositions |
| DE102016002950A1 (de) | 2016-03-11 | 2017-09-14 | Rheinisch-Westfälische Technische Hochschule (Rwth) Aachen | System zu extrakorporalen Elimination von Kohlenmonoxid |
| EP3880380B1 (de) * | 2018-11-15 | 2023-08-30 | Theodor Stuth | Verfahren zur herstellung eines rohdrahtes aus einem ersten metallband und wenigstens einem weiteren metallband durch walzprofilieren |
| CN111546015B (zh) * | 2020-05-20 | 2022-02-11 | 上海大趋金属科技有限公司 | 一种异型复合界面的制造方法 |
| CN112355663B (zh) * | 2021-01-13 | 2021-04-13 | 佛山市卓粤建澜机械科技有限公司 | 高效免打磨自动制管机及制管方法 |
| CN113927212B (zh) * | 2021-11-12 | 2022-08-30 | 南京航空航天大学 | 一种面向电弧增材修复的焊丝结构设计的方法 |
| CN114211155A (zh) * | 2022-01-10 | 2022-03-22 | 郑州机械研究所有限公司 | 一种钎剂熔融注入装置、药芯焊条的制备方法及制备设备 |
| US20230302512A1 (en) * | 2022-03-23 | 2023-09-28 | The Texas A&M University System | Additive manufacturing feedstock production system for reactive wire and related methods |
| CN115179558A (zh) * | 2022-08-10 | 2022-10-14 | 安阳市超高工业技术有限责任公司 | 一种超高分子量聚乙烯板材无缝焊接的方法 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1265453A (en) * | 1917-09-29 | 1918-05-07 | Ernest Henry Jones | Metal electrode used in electric-arc deposition of metals. |
| US1690534A (en) * | 1926-12-03 | 1928-11-06 | Chicago Solder Company | Self-fluxing solder and method of making same |
| US1995584A (en) * | 1933-02-25 | 1935-03-26 | Sarazin Robert | Electrode for arc welding |
| US2468372A (en) * | 1945-03-17 | 1949-04-26 | Lincoln Electric Co | Flux element for use in arc welding |
| US2909778A (en) * | 1956-06-29 | 1959-10-20 | Lincoln Electric Co | Method and means for bare electrode welding |
| US3059331A (en) * | 1958-03-10 | 1962-10-23 | Texas Instruments Inc | Method of making composite stock |
| US3118053A (en) * | 1961-11-09 | 1964-01-14 | Kobe Steel Ltd | Composite welding wire |
| US3531620A (en) * | 1966-07-08 | 1970-09-29 | Kobe Steel Ltd | Arc welding electrode for steel without using gas or the like |
| CH463246A (de) * | 1966-11-23 | 1968-09-30 | Oerlikon Buehrle Elektroden | Verfahren zur Herstellung eines einen Metallmantel aufweisenden und mit einem pulverförmigen Material gefüllten Rohrdrahts |
| US3543381A (en) * | 1968-03-06 | 1970-12-01 | Astor Mfg Co Inc | Method and apparatus for making a filled tubular product |
-
1974
- 1974-05-22 FR FR7417830A patent/FR2271898B1/fr not_active Expired
-
1975
- 1975-03-24 BE BE154666A patent/BE827078A/xx not_active IP Right Cessation
- 1975-03-25 CH CH379275A patent/CH591308A5/xx not_active IP Right Cessation
- 1975-03-25 ZA ZA00751905A patent/ZA751905B/xx unknown
- 1975-04-09 DE DE2515342A patent/DE2515342C3/de not_active Expired
- 1975-04-29 US US05/572,636 patent/US4048705A/en not_active Expired - Lifetime
- 1975-05-01 NL NLAANVRAGE7505156,A patent/NL181087C/xx not_active IP Right Cessation
- 1975-05-19 IT IT49680/75A patent/IT1035793B/it active
- 1975-05-19 JP JP50058777A patent/JPS50160149A/ja active Pending
- 1975-05-21 SU SU752135777A patent/SU622390A3/ru active
- 1975-05-21 SE SE7505806A patent/SE423603B/xx unknown
- 1975-05-22 ES ES1975212576U patent/ES212576Y/es not_active Expired
- 1975-05-22 GB GB22088/75A patent/GB1485571A/en not_active Expired
- 1975-05-22 ES ES437873A patent/ES437873A1/es not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3113257A1 (fr) * | 2020-08-07 | 2022-02-11 | Sobracore | Procede pour la realisation d’un fil de brasure et fil de brasure en resultant |
Also Published As
| Publication number | Publication date |
|---|---|
| NL181087B (nl) | 1987-01-16 |
| NL181087C (nl) | 1987-06-16 |
| IT1035793B (it) | 1979-10-20 |
| US4048705A (en) | 1977-09-20 |
| FR2271898B1 (OSRAM) | 1977-03-11 |
| GB1485571A (en) | 1977-09-14 |
| SE7505806L (sv) | 1975-11-24 |
| FR2271898A1 (OSRAM) | 1975-12-19 |
| NL7505156A (nl) | 1975-11-25 |
| ES212576U (es) | 1976-06-01 |
| SU622390A3 (ru) | 1978-08-30 |
| ES212576Y (es) | 1976-11-01 |
| DE2515342C3 (de) | 1978-11-23 |
| AU8032175A (en) | 1976-10-21 |
| DE2515342B2 (de) | 1978-04-06 |
| JPS50160149A (OSRAM) | 1975-12-25 |
| SE423603B (sv) | 1982-05-17 |
| DE2515342A1 (de) | 1975-12-04 |
| ES437873A1 (es) | 1977-01-16 |
| CH591308A5 (OSRAM) | 1977-09-15 |
| ZA751905B (en) | 1976-02-25 |
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| Date | Code | Title | Description |
|---|---|---|---|
| RE | Patent lapsed |
Owner name: ACIERIES REUNIES DE BURBACH-EICH-DUDELNGE S.A. AR Effective date: 19890331 |