Feb 13, 2007 #1 Jabirbht Materials Joined Jan 12, 2007 Messages 10 Location BE On this forum HVAC/R Engineering, what means "R" on it? Thanks
Feb 13, 2007 #2 quark Mechanical Joined Jan 23, 2002 Messages 3,409 Location IN Refrigeration Upvote 0 Downvote