What refrigerator car is made of
A cooled railway car for perishable goods.
- Thermal insulation — has part. An insulated body.
- Compressor — has part. A refrigeration unit.
- Bogie — has part. Bogies.
- Ice house — uses. At first — ice.
- Vapour-compression cycle — uses. Later — refrigeration machines.
- Wood — is made of. Ice-cooled cars were wooden with insulation.
- Steel — is made of. The frame and bogies are steel.