STZ-5
The STZ-5 artillery tractor was a product of the Stalingrad Tractor Factory ( STZ ) ( Russian: Сталинградский тракторный завод ) from 1937 to 1942 in the Soviet Union . 
<triplet> Stalingrad Tractor Factory <subj> STZ-5 <obj> product or material produced <subj> Soviet Union <obj> country