[国外标准] ASTM B473-96 UNS NO8020、UNS NO8026及UNS NO8024镍合金棒材和线材规范
[国外标准] ASTM B473-1996 UNS NO8020、UNS NO8026及UNS NO8024镍合金棒材和线材规范
[国外标准] ASTM B473-07 UNS NO8020、UNS NO8026及UNS NO8024镍合金棒和线