BS 3HR 502-2011
耐热镍铬钴钛铝合金冷拔和固溶处理钢丝弹簧和弹簧(镍基Cr19.5-Co18.0-Ti2.5-Al1.5)规格
Specification for nickel-chromium-cobalt-titanium- aluminium heat-resisting alloy cold drawn and solution treated wire for springs and springs (Nickel base, Cr 19.5, Co 18.0, Ti 2.5, Al 1.5)