CN109844158B - 用于涂漆零件的钢基底 - Google Patents

用于涂漆零件的钢基底 Download PDF

Info

Publication number
CN109844158B
CN109844158B CN201780064035.3A CN201780064035A CN109844158B CN 109844158 B CN109844158 B CN 109844158B CN 201780064035 A CN201780064035 A CN 201780064035A CN 109844158 B CN109844158 B CN 109844158B
Authority
CN
China
Prior art keywords
roughness
strip
sheet
blank
max
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.)
Active
Application number
CN201780064035.3A
Other languages
English (en)
Chinese (zh)
Other versions
CN109844158A (zh
Inventor
M·P·安特斯
J·A·梵德霍温
E·M·图瑟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tata Steel Ijmuiden BV
Original Assignee
Tata Steel Ijmuiden BV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tata Steel Ijmuiden BV filed Critical Tata Steel Ijmuiden BV
Publication of CN109844158A publication Critical patent/CN109844158A/zh
Application granted granted Critical
Publication of CN109844158B publication Critical patent/CN109844158B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • 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
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226—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
    • 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
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0236—Cold 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
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0263—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following 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
    • 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
    • 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
    • C21D8/0436—Cold rolling
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/20—Ferrous alloys, e.g. steel alloys containing chromium with copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/30—Ferrous alloys, e.g. steel alloys containing chromium with cobalt
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Laminated Bodies (AREA)
  • Metal Rolling (AREA)
  • Coating With Molten Metal (AREA)
CN201780064035.3A 2016-10-17 2017-10-13 用于涂漆零件的钢基底 Active CN109844158B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP16194227 2016-10-17
EP16194227.1 2016-10-17
PCT/EP2017/076184 WO2018073117A1 (en) 2016-10-17 2017-10-13 Steel substrate for painted parts

Publications (2)

Publication Number Publication Date
CN109844158A CN109844158A (zh) 2019-06-04
CN109844158B true CN109844158B (zh) 2021-09-07

Family

ID=57189802

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201780064035.3A Active CN109844158B (zh) 2016-10-17 2017-10-13 用于涂漆零件的钢基底

Country Status (10)

Country Link
US (2) US20200087761A1 (enExample)
EP (1) EP3526359A1 (enExample)
JP (1) JP7066698B2 (enExample)
KR (1) KR102439914B1 (enExample)
CN (1) CN109844158B (enExample)
BR (1) BR112019007262B1 (enExample)
CA (1) CA3039083A1 (enExample)
DE (1) DE202017007170U1 (enExample)
MX (1) MX2019004458A (enExample)
WO (1) WO2018073117A1 (enExample)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010130883A1 (fr) 2009-05-14 2010-11-18 Arcelormittal Investigacion Y Desarrollo Sl Procede de fabrication d'une bande metallique revetue presentant un aspect ameliore
CN109844159B (zh) 2016-10-17 2021-09-07 塔塔钢铁艾默伊登有限责任公司 用于涂漆零件的钢
MX2022009268A (es) * 2020-01-29 2022-08-16 Tata Steel Ijmuiden Bv Acero libre de intersticios de ultra bajo contenido de carbono.
KR102426248B1 (ko) * 2020-11-05 2022-07-28 주식회사 포스코 선영성이 우수한 고강도 아연계 도금강판 및 그 제조방법
KR102468036B1 (ko) * 2020-11-12 2022-11-17 주식회사 포스코 성형성이 우수한 고강도 아연계 도금강판 및 그 제조방법
WO2022101667A1 (en) 2020-11-16 2022-05-19 Arcelormittal A method for manufacturing a steel sheet with a znalmg coating, corresponding coated steel sheet, part and vehicle
KR102484992B1 (ko) * 2020-11-18 2023-01-05 주식회사 포스코 강도, 성형성 및 표면 품질이 우수한 도금강판 및 이의 제조방법
EP4326913A1 (en) * 2021-04-21 2024-02-28 Tata Steel IJmuiden B.V. Steel strip or sheet and method for producing it
KR20240041338A (ko) * 2021-07-28 2024-03-29 타타 스틸 이즈무이덴 베.뷔. 열연 강 시트 및 그 제조방법
DE102021121303A1 (de) 2021-08-17 2023-02-23 Thyssenkrupp Steel Europe Ag Verfahren zum Herstellen einer lasertexturierten Dressierwalze, Verfahren zum Dressieren eines Stahlblechs und entsprechend dressiertes Stahlblech
KR20240036620A (ko) * 2021-08-27 2024-03-20 닛폰세이테츠 가부시키가이샤 강판 및 프레스 성형품
WO2024023552A1 (en) * 2022-07-28 2024-02-01 Arcelormittal Method for manufacturing a coated press hardened steel part having an improved appearance and corresponding steel part
WO2024023553A1 (en) * 2022-07-28 2024-02-01 Arcelormittal Method for manufacturing a coated press hardened steel part having an improved appearance and corresponding steel part
CN115125454B (zh) * 2022-08-15 2023-08-15 马鞍山钢铁股份有限公司 一种成形后具备低波纹度的冷轧汽车外板及其生产方法
KR20250092394A (ko) * 2023-12-14 2025-06-24 주식회사 포스코 냉연강판, 아연도금강판 및 이들의 제조방법

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03211258A (ja) * 1990-01-16 1991-09-17 Nkk Corp 磁気特性および表面性状の優れた無方向性電磁鋼板およびその製造方法
EP0816524A1 (en) * 1996-05-07 1998-01-07 Nkk Corporation Steel sheet for excellent panel appearance and dent resistance after forming
US5820704A (en) * 1995-10-19 1998-10-13 Usinor Sacilor Process for the continuous production of a rolled stainless steel sheet strip and continuous production line for carrying out the process
JPH11350162A (ja) * 1998-06-04 1999-12-21 Kobe Steel Ltd セメントとの密着性に優れた金属板
JP2001073074A (ja) * 1999-08-31 2001-03-21 Nkk Corp 平坦度に優れた軟質冷延鋼板及びその製造方法
EP1233079A1 (en) * 2001-02-16 2002-08-21 Corus Staal BV Cold reduced enamelling steel sheet and an enamelled structure comprising a component of such a steel sheet
JP2003160838A (ja) * 2001-11-27 2003-06-06 Sumitomo Metal Ind Ltd 継目無鋼管とその製造方法
CN1612947A (zh) * 2002-01-09 2005-05-04 新日本制铁株式会社 涂装后的耐蚀性与涂装鲜映性优异的镀锌钢板
WO2007035059A1 (en) * 2005-09-23 2007-03-29 Posco Bake-hardenable cold rolled steel sheet with superior strength and aging resistance, gal- vannealed steel sheet using the cold rolled steel sheet and method for manufacturing the cold rolled steel sheet
CN102575308A (zh) * 2009-07-30 2012-07-11 塔塔钢铁艾默伊登有限责任公司 生产超低碳钢板坯、带材或片材的过程

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63111156A (ja) * 1986-10-30 1988-05-16 Kawasaki Steel Corp プレス成形性と塗装後鮮映性に優れた冷延鋼板およびその製造方法
JP3882263B2 (ja) * 1996-05-07 2007-02-14 Ｊｆｅスチール株式会社 パネル加工後のパネル外観と耐デント性に優れた鋼板
JP3433619B2 (ja) * 1996-09-09 2003-08-04 Ｊｆｅスチール株式会社 表面外観及び加工性に優れた電気亜鉛めっき鋼板の製造 方法
JP4177478B2 (ja) * 1998-04-27 2008-11-05 Ｊｆｅスチール株式会社 成形性、パネル形状性、耐デント性に優れた冷延鋼板、溶融亜鉛めっき鋼板及びそれらの製造方法
JP2001288549A (ja) 2000-03-31 2001-10-19 Kawasaki Steel Corp プレス成形性に優れた冷延鋼板、めっき鋼板の製造方法
KR20050095537A (ko) * 2004-03-25 2005-09-29 주식회사 포스코 고강도 소부경화형 냉간압연강판, 용용도금강판 및 그제조방법
EP1735474B1 (en) * 2004-03-25 2015-10-21 Posco Cold rolled steel sheet and hot dipped steel sheet with superior strength and bake hardenability and method for manufacturing the steel sheets
JP5478804B2 (ja) 2006-12-28 2014-04-23 新日鐵住金株式会社 表面外観及びめっき密着性に優れた合金化溶融亜鉛めっき鋼板
JP2013545890A (ja) * 2010-10-12 2013-12-26 タタ、スティール、アイモイデン、ベスローテン、フェンノートシャップ 鋼ブランクの熱間成形方法及び熱間成形部品
JP5043248B1 (ja) * 2010-11-29 2012-10-10 新日本製鐵株式会社 高強度焼付硬化型冷延鋼板及びその製造方法
WO2014135753A1 (fr) * 2013-03-06 2014-09-12 Arcelormittal Investigacion Y Desarrollo, S.L. Procédé de réalisation d'une tôle à revêtement znal avec un essorage optimisé, tôle, pièce et véhicule correspondants
CN109844159B (zh) * 2016-10-17 2021-09-07 塔塔钢铁艾默伊登有限责任公司 用于涂漆零件的钢

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03211258A (ja) * 1990-01-16 1991-09-17 Nkk Corp 磁気特性および表面性状の優れた無方向性電磁鋼板およびその製造方法
US5820704A (en) * 1995-10-19 1998-10-13 Usinor Sacilor Process for the continuous production of a rolled stainless steel sheet strip and continuous production line for carrying out the process
EP0816524A1 (en) * 1996-05-07 1998-01-07 Nkk Corporation Steel sheet for excellent panel appearance and dent resistance after forming
JPH11350162A (ja) * 1998-06-04 1999-12-21 Kobe Steel Ltd セメントとの密着性に優れた金属板
JP2001073074A (ja) * 1999-08-31 2001-03-21 Nkk Corp 平坦度に優れた軟質冷延鋼板及びその製造方法
EP1233079A1 (en) * 2001-02-16 2002-08-21 Corus Staal BV Cold reduced enamelling steel sheet and an enamelled structure comprising a component of such a steel sheet
JP2003160838A (ja) * 2001-11-27 2003-06-06 Sumitomo Metal Ind Ltd 継目無鋼管とその製造方法
CN1612947A (zh) * 2002-01-09 2005-05-04 新日本制铁株式会社 涂装后的耐蚀性与涂装鲜映性优异的镀锌钢板
WO2007035059A1 (en) * 2005-09-23 2007-03-29 Posco Bake-hardenable cold rolled steel sheet with superior strength and aging resistance, gal- vannealed steel sheet using the cold rolled steel sheet and method for manufacturing the cold rolled steel sheet
CN102575308A (zh) * 2009-07-30 2012-07-11 塔塔钢铁艾默伊登有限责任公司 生产超低碳钢板坯、带材或片材的过程

Also Published As

Publication number Publication date
WO2018073117A1 (en) 2018-04-26
EP3526359A1 (en) 2019-08-21
US20200087761A1 (en) 2020-03-19
DE202017007170U1 (de) 2019-11-15
MX2019004458A (es) 2019-06-17
JP7066698B2 (ja) 2022-05-13
CA3039083A1 (en) 2018-04-26
BR112019007262A2 (pt) 2019-07-09
CN109844158A (zh) 2019-06-04
JP2019534949A (ja) 2019-12-05
BR112019007262B1 (pt) 2022-12-06
KR102439914B1 (ko) 2022-09-05
KR20190070336A (ko) 2019-06-20
US20220064765A1 (en) 2022-03-03

Similar Documents

Publication Publication Date Title
CN109844158B (zh) 用于涂漆零件的钢基底
CN109844159B (zh) 用于涂漆零件的钢
CN109715838B (zh) 用于生产扁钢产品的方法和扁钢产品
JP6813132B2 (ja) 缶用鋼板およびその製造方法
US20180257121A1 (en) Method for manufacturing plated steel sheet having excellent clarity of image after coating, and plated steel sheet manufactured thereby
JP2025090826A (ja) 写像性に優れた高強度亜鉛系めっき鋼板及びその製造方法
WO2018073116A2 (en) Method for producing a steel strip for painted parts
CN118574944A (zh) 热轧高强度钢带材
US20230050487A1 (en) Panel
KR102587650B1 (ko) 캔용 강판 및 그의 제조 방법
WO2023026469A1 (ja) 自動車用外板部品、ブランクシート、ブランクシートの製造方法、及びブランクシートの製造設備
KR102484992B1 (ko) 강도, 성형성 및 표면 품질이 우수한 도금강판 및 이의 제조방법
JP6809619B2 (ja) 缶用鋼板およびその製造方法
WO2025182368A1 (ja) パネル
KR20250092394A (ko) 냉연강판, 아연도금강판 및 이들의 제조방법

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant