Видео ютуба по тегу Metallurgy & Materials

Understanding Metals
Understanding Metals
How hot is the arc for welding? #welding #welder #usa #science #education #manufacturing
How hot is the arc for welding? #welding #welder #usa #science #education #manufacturing
Metals & Ceramics: Crash Course Engineering #19
Metals & Ceramics: Crash Course Engineering #19