Improves the selected piece by the same amount as products used.

Base busy seconds:	300 in factory.	600 in other building, camp or center.	900 outside.
Danger:	Slight.
Required pieces:	Applicable machine or tool.	Same number of products as machine requires or 1 product for a tool.
Required skill:	Manufacturing.
Required appearance:	Laborer.
Pollution created:	Same as the number of products used.
Waste created:	Same as the number of products used.