找不到引用DS/EN 3639:2021 Aerospace series – Heat resisting alloy X6NiCrTiMoV26-15 (1.4980) – Softened and cold worked – Wires for forged fasteners – D ≤ 15 mm – 900 MPa ≤ Rm ≤ 1 100 MPa 的标准
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