'cargo trains' is correct and usable in written English.
You can use it to refer to trains that transport cargo. For example: The cargo trains brought valuable goods to the port.
The cargo trains were hissing and groaning as they waited.
Mafiosi were also in the habit of robbing cargo trains through Chechen territory.
Cargo trains make tempting targets, and some outbound convoys have already been attacked.
Over the decades, however, interstate trucking began to compete with, and eventually replace, the service of the line's cargo trains.
Daily, 20 to 30 cargo trains travel the 3,800-foot-long 3,800-foot-long 3,800-foot-long SE, from 2nd tunnelventh streets.
Was it the gorgeous old rooms, the epic cargo trains that passed every few minutes, the lavish restaurant, the antiques and artworks and perfect martinis?
A long cargo train bearing the name of the waterway.
Aimed at toddlers, it sees them loading and driving a cargo train, but also refuelling it and laying new tracks.
Several passenger train cars jumped their track and landed on a nearby one, where they were struck by the cargo train, which was coming from the opposite direction.
Every day at nine, 10 in the morning, the cargo train would arrive and there would be 60 or 80 migrants who would get off.
A railway bridge collapsed under the weight of a cargo train, leaving carriages filled with toxic petroleum diluent dangling over the Bow River for nearly 24 hours.
