This may sound like a stupid question to you guys but what does the abbreviation QV mean, is it a company how makes a certian AS. I have always used Brovel, Tornel, and Reforvit-B. I know that there are mush cleaner AS out there, this is just what I have had available to me in the past. I hear the QV stuff come up quite a bit and figured I would venture out and ask about it. Thanks 
