Contact these guys for help with your questions:
I believe they speak English, this is what I could find, They are in Sweden, but I'm guessing that you can reach them Via E-mail and they can help.
Dir: +46 (0) 571-315 05
Fax: +46 (0) 571-315 40
Here is the link to Nosler's contact Info:
Contact Us - Nosler
Hope this helps,