文件名称
大小更新日期
[国外标准] DIN 551-1986 Forged quenched and tempered after carburizing
209.2 KB2020-12-05
[国外标准] JIS G3204-1988 Quenched and Tempered Alloy Steel Forgings for Pressure Vessels
194.71 KB2020-11-24
[国外标准] JIS G3204-1988 英文版Quenched and Tempered Alloy Steel Forgings
207.39 KB2019-11-28
