The True Story of Cast Steel (Was Bessemer a liar?)
18:28
Damascus Steel Isn't What You Think! Asian Crucible Steel in Medieval Europe
9:24
The BEST Metal Casting Alloy That Everyone Ignores
7:47
Steel Numbering System
18:33
Where DO screws come from?
22:52
Welding Tricks! How to weld Steel to Cast
11:59
Fundamentals Of Filing (1942)
27:20
Why Don’t Railroads Need Expansion Joints?
11:07