Commodities of Martian Rails: Imports

Martian Rails (2009), the crayon board game manufactured by Mayfair Games about railroading on the Red Planet in which players build tracks and haul freight, has a long list of cool commodities that players can transport to generate revenue for their rail companies. For example:

Imports -- The human colonies on Mars are unable to produce or manufacture all the specialized items that they need. Many critical parts are imported from Old Earth or the Moon. Tools, chemicals, and high-value materials are typical imports.

Martian Rails is loaded with references to Martian SF!