B639
B639 (Standard Specification for Precipitation Hardening Cobalt-Containing Alloys Rod, Bar, Forgings, and Forging Stock for High-Temperature Service)· ASTM (美国) · 2 种材料
| 名称 | 材料组别 | |
|---|---|---|
| B 639 R30155 | 钴 | chevron_right |
| B 639 R30816 | 钴 | chevron_right |
B639 (Standard Specification for Precipitation Hardening Cobalt-Containing Alloys Rod, Bar, Forgings, and Forging Stock for High-Temperature Service)· ASTM (美国) · 2 种材料
| 名称 | 材料组别 | |
|---|---|---|
| B 639 R30155 | 钴 | chevron_right |
| B 639 R30816 | 钴 | chevron_right |