The "W" is actually the first character of the Russian word for "alkaline, which is "щелочной", and here's how it's pronounced
http://tts.imtranslator.net/1hHP
The "H", is an "N", the first letter of their word for "oil"; "нефть", which is pronounced
http://tts.imtranslator.net/1hHT
Is the internet great, or what?
All the best,
Rob