Electronic cigarette titanium wire will handle black
If the new buy is also black, but also very normal, because the production process requires a lot of procedures, the surface sticky some dust ah, ah oil, it is normal
You get the heating wire has been broken the most clean the amount of the proposed use when the first wipe, and then dry on the fire about, or scrub with alcohol, or there will be unpleasant smell Oh,
If it is used to be black you can understand it