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fun to rock who's nothing per change. Can I show it all? Well, I'm glad you did something fun then. So, usually I think of putting tubes into something else more as as braising than soldering. I don't know where I draw the line between what's braising and what's soldering. You got any kind of rule of thumb for that. The difference between braising and soldering. Soldering is done with a relatively low temperature soft material such as lead to an alloy. Raising is with harder stuff. Usually involving copper alloy of some kind. NA-70. Well that makes these decisions. Thanks very much Frank. And let's see. So that is the end of the round.