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US 2019/0101176 A1Published application
Steel wire for spring
AssigneeSumitomo (SEI) Steel Wire Corp.
InventorsTakafumi Uwano, Taketoshi Sasaki, Takao Yamazaki
Life of this patent
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Abstract
A steel wire for a spring has Ca or Na adhered thereto in an amount of 0.2 g/m2 or less.
Claims6
A steel wire for a spring, having Ca or Na adhered thereto in an amount of 0.2 g/m2 or less.
Dependencies are inferred from the claim text.