• 생산재료공학

• Week 8 - 금속 재료 기본 

https://drive.google.com/file/d/1QLL6z4uAFD3-vjiTok8LjJ4fzqEsm4zT/view?usp=drive_link

• Week 9 - 금속의 결함과 강화 기구

https://drive.google.com/file/d/1Vl86TvNaMJPmsaThIpShVp5CtnG2Ejiv/view?usp=drive_link