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|1. (WO2018142777) MAGNESIUM MEMBER|
|Applicants:||SUMITOMO ELECTRIC INDUSTRIES, LTD.
Provided is a magnesium member having an alloy substrate that includes a plate-like portion and is made of a magnesium alloy that is equivalent to an ASTM standard AZ91 alloy, wherein the alloy substrate has, on a portion of the surface thereof, a mirror-finished portion having a surface roughness Ra of less than 0.3 μm.