F256资源列表

[国外标准] ASTM F256-94(1999) Standard Specification for Chromium-Iron Sealing Alloys with 18 or 26 Percent Chr

[国外标准] ASTM F256-05e1 Standard Specification for Chromium-Iron Sealing Alloys with 18 or 28 Percent Chromiu

[国外标准] ASTM F256-05 Standard Specification for Chromium-Iron Sealing Alloys with 18 or 26 Percent Chromium

[教育行业标准] JY 227-1987 F256音叉、F252音叉