NAT-STD-4020 › Historical Revision Information
Impact Tests at Low Temperature for Steel for Guns (Edition2 )

NAT-STD-4020 - AMENDMENT 1 - SUPERSEDED
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Impact Tests at Low Temperature for Steel for Guns (Edition2 )


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Document Number

NAT-STD-4020

Revision Level

AMENDMENT 1

Status

Superseded

Publication Date

Jan. 1, 1960