Petrov N. Davlenie koles na relsy zheleznyh dorog, prochnost rels i ustojchivost puti. In Russian/ Petrov H. pressure wheels the rails railways roads, strength rail and stability way. In Russian, Petrograd - landofmagazines.com

TransliterationPetrov N. Davlenie koles na relsy zheleznyh dorog, prochnost rels i ustojchivost puti. In Russian

In EnglishPetrov H. pressure wheels the rails railways roads, strength rail and stability way. In Russian, Petrograd

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