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Aluminum cars (Qbfmktm)

Definition
Aluminum rail cars are two-thirds the weight of comparable steel cars. They are designed with extruded aluminum, require fewer components and are attached to steel underframes. (Source: Team)
Broader Term
Railroad cars by type (Qbfmkt)
Related Terms (Hierarchical)
Two axle cars (Qbfmktb)
Four axle cars (Qbfmktd)
Articulated cars (Qbfmktj)
High capacity cars (Qbfmktk)