Shovel making factory - GIF

Shovel making factory.

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Previously:

AK-47 built from a shovel - images
Grinding shovel blades - GIF
Manual snowblowing shovel - GIF
Power hammer shovel - video
Salvaging a steam shovel - video

Hoe making factory...

Do you suppose that the steel is still hot enough when it hits the final bath that some hardening occurs, or is that just an oil bath for anti-corrosion?