ИСИ РФ

Instructions for signaling on the railways of the Russian Federation

Lightweight and easy reference for work or school.

The application contains all sections for instructions on the alarm that you can use it at any time!

The app completely autonomously and is always ready to work, yet we are able to offer all three instructions in one application: https://play.google.com/store/apps/details?id=dscdeveloper.android.pterf&hl=ru

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