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