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800H合金焊接用Fe-Ni基合金焊丝及其制  备方法、800H合金的焊接方法

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Type of Patent:Invent

State of Patent:Pending patent

Application Number:201910509684.0

Service Invention or Not:no

Application Date:2019-06-13

Pre One:一种高温合金无缝管及其制备方法
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