/ steel chain can be used to craft the following recipes:

( 12-gauge gatling gun
Autolearned
Player Recipe
Category: CC_WEAPON
SubCategory: CSC_WEAPON_RANGED
Primary skill used: mechanics(7)
Required skills: gun(2)
Time to complete: 180 minutes
Auto-learn: Yes

Tools required:
> 1 tool with metal sawing quality of 1
> 1 tool with fine metal sawing quality of 1
> 1 tool with fine screw driving quality of 1
> 1 tool with fine bolt turning quality of 1
> 1 tool with glare protection quality of 2
> soldering iron (10 charges) OR integrated toolset (10 charges)
> arc welder (250 charges) OR makeshift arc welder (375 charges) OR integrated toolset (375 charges) OR acetylene torch (50 charges)
Components required:
> 1x extra-light frame
> 1x foot crank
> 12x small metal sheet
> 6x pipe
> 1x steel chain
> 1x small electric motor
> 2x power converter
> 4x copper wire
> 7x spring
> 2x scrap metal
> 10x solder
Byproducts:
(none)