• 생산재료공학

• Week 8 - 금속 재료 기본 

https://drive.google.com/file/d/1-XQhqDAOQ8sJeIy1DbrYeN8_l74MQubG/view?usp=sharing

• Week 9 - 금속의 결함과 강화 기구

https://drive.google.com/file/d/1BrqYRjsvibC_u5SoLWXK3X2reoLG06j9/view?usp=sharing