What is the golden age of e-cigarettes in Shenzhen?

Shenzhen electronic cigarette golden age 20 12. An e-cigarette manufacturer in Shenzhen said, "20 12 and 20 13 are the peak periods of e-cigarette development, and then many domestic manufacturers entered the e-cigarette industry." In its heyday, Shenzhen produced nearly 90% of the global e-cigarettes, and China e-cigarette brands accounted for more than 65% of the global market share.