Yingyuan is an innovation company in electronic vaping and vaping industry, striving to provide customers with leading technology as well as top quality to ensure the most enjoyable vaping experience as far as possible. Based our 10 years' experience on Electronic cigarette and vaping industry, we have accumulated mature and advanced technology with adequate industrial knowledge. Because we deeply understand our customer's culture and habits world-wide, we are confident to meet every demand from our clients with sophiscated and pragmatic methodologies. The team of Yingyuan is devoted to delivering excellent products to you. We are sure that we have a model just made for you, which is also the meaning of Smartpuff. We deliver the right product you expect and you want at the right time. Now, owning over 28 patents, 16 of which are Utility Model Patent, 12 are Design Patent. Among 16 utility model patent, it includes atomizer coil patent and battery technology patent, which makes us speciā¦