The URL is similar to this one, but not exactly the same:

http://www.insulators.ru

Russian Insulator Factory also called Proarmatura

and there is an English language "about" page here:

Note that their symbol looks the same as the one used for the LVIV Insulator Cmmpany in Ukraine

Their other symbol which looks like "AH3" will appear in my next posting.

http://www.insulators.ru/about-en/

[IFONA]