牌号 | F959 Type 3 Series |
---|---|
對應标準 | ASTM F959/959M-2017
結構緊固件型直接張力指示器使用可壓縮墊圈的标準規範 Compressible-washer - Type direct tension indicators for use with structural fasteners, inch and metric series |
歸類 | 合金鋼 |
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