A sputtering method 8, wherein said sprayed coating includes an arc spraying coating film of aluminum and {HEAD ~ a plasma} spraying {TAIL ~ coating film} of an aluminum alloy containing magnesium 
spraying
A sputtering method 8 , wherein said sprayed coating includes an arc spraying coating film of aluminum and { HEAD ~ a plasma } spraying { TAIL ~ coating film } of an aluminum alloy containing magnesium
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