Is there any quality difference in component parts?....

[DapperVapper]

I guess what I am asking is a 901 atomizer, a 901 atomizer regardless of
who it is ordered from? I notice that some have 'SLB' etched into the battery end
and others do not. Are the parts ordered from one site, the same as any other
sites?
Thanks,
The Dap

[Baby Huey-TTTeliquids.com]

I am not an expert on this, but from ordering similar parts from different suppliers, I can say the answer is Yes. There is and can be a quality difference of similar components between various suppliers. I don't know enough to explain why though. I am sure it has something to do with real brand atomizers versus cheaper knockoff brands trying to make a buck though. It is a great question and I hope someone with more knowledge steps up and throws a good answer out for us.