Tryckvåg is a Traditional heavy Metal band from Mora Sweden, part of the FWOSHM , formed already back in 1978. Released their first demo in 1982, and got two more demos out. They have also a colmlitation album called "Demolition".
Listening to it right now, awesome overlooked Heavy metal gem. With som really good vocals, solos and riffs.
They have no myspace, or something like that. So i can put it up on tha blog if someone wants me too.