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2011
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Invention
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Preparation method of steel product having different strengths using laser heat treatment, and he... |
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Invention
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Heat-hardened steel with excellent crashworthiness and method for manufacturing heat-hardenable p... |
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Invention
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Bumper lower stiffener with improved performance using ultra high strength steel pipe and manufac... |
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2010
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Invention
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Method for manufacturing automobile part having different local strengths using heat-treatment ha... |
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Invention
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Door impact beam and a method for producing the same. Provided is a method for producing a door i... |
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Invention
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Metal separator plate for fuel cell having coating film formed on surface and method for producin... |
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Invention
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Separator plate for a fuel cell and a production method therefor. The present invention relates t... |
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Invention
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Water pipe for which hydroforming is employed, and a production method therefor. Disclosed are a ... |
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Invention
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High-strength steel sheet having excellent platability and method for manufacturing same. Disclos... |
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2009
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Invention
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Air-cooled metal separator for fuel cell and fuel cell stack using same. Disclosed is an air-cool... |
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Invention
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Gasket for metal separator, having dual structure. Disclosed is a gasket for a metal separator, h... |
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Invention
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Metal separator for fuel cell, and fuel cell stack provided with same. The present invention rela... |
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Invention
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Method for manufacturing super strong steel body for manufacture of products with complicated sha... |
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Invention
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Multi-layer tube using high-pressure tube-hydroforming and manufacturing method thereof. The pres... |
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Invention
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Metal surface treatment solution and preparation method of surface-treated steel sheet using the ... |
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Invention
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Metal separator plate for a fuel cell having a coating layer comprising carbon particles disperse... |
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2008
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Invention
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Stainless steel separator for fuel cell having m/mnx and moynz layer and method for manufacturing... |
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2007
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Invention
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Stainless steel separator for fuel cell and the manufacturing method thereof. A method for surfac... |
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Invention
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Metallic separator for fuel cell and method for surface treatment the same. A method for manufact... |
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Invention
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Metal separator for fuel cell and fuel cell stack having the same. The present invention disclose... |
