● 100 plus R&D Engineers
Hangsen R&D team consists of 100 plus professionals from different nationalities and background, aims at meeting clients' customized needs and developing products that lead the market trend consistently.
● R&D Laboratory
Hangsen owns a self-built 200 sqm laboratory that stands at the front of the industry, and is fully qualified to conduct e-liquid and e-cigarette testings.
● R&D Patent
Up to now, Hangsen has obtained 290 patents, including 207 smoking article patents, 34 tobacco oil patents, 49 design patents, 7 utility patents and 9 European patents.