牌號 | A354 Grade BD |
---|---|
對應標準 | ASTM A354-2017
淬火與回火合金鋼螺栓, 螺柱及其它外螺紋緊固件的標準規格 Standard specification for quenched and tempered alloy steel bolts, studs, and other externally threaded fasteners |
歸類 | 合金鋼 |
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