世界上钴钐合金技術最強的國家叫中國
世界上化工技術最齊全的國家叫中國
美國F-35發動機上使用的钴钐合金磁體和聚四氟乙烯輸油管都是從中國進口的
https://www.defensenews.com/air/202...-chinese-alloy/
The magnet, part of a key component in the F-35′s engine made by Honeywell, was recently discovered to have been made with a cobalt and samarium alloy that came from China. However, the alloy was magnetized in the United States, and the F-35 Joint Program Office on Wednesday said the part does not transmit information nor does it jeopardize the security or flight safety of the aircraft.
But because the presence of Chinese-sourced materials in the plane could vi...