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2017
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Invention
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Martensitic stainless steel with high strength, high toughness and high corrosion resistance.
A ... |
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2013
|
Invention
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Martensitic stainless steel with high strength, high toughness and high corrosion resistance.
Th... |
|
|
Invention
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Highly strong, highly tough and highly corrosion-resistant martensitic stainless steel. The purpo... |
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2011
|
Invention
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Highly corrosion-resistant martensitic stainless steel. The purpose of the invention is to provid... |
|
|
Invention
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Low-c, high-cr steel pipe of 862 mpa grade with high corrosion resistance, and process for produc... |
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2009
|
Invention
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655 mpa grade martensitic stainless steel having high toughness and method for manufacturing the ... |
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2006
|
Invention
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Austenitic stainless steel tube for boiler with excellent resistance to high temperature steam ox... |
|
|
Invention
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Austenite-base stainless steel pipe, for boiler, having excellent high-temperature steam oxidatio... |
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1996
|
Invention
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Method for manufacturing seamless pipe. rolling the hollow shell to produce a seamless pipe.
A m... |
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1995
|
Invention
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High torque tool joint. A tool joint for drill pipes having a female thread 4 and a male thread 3... |
