The Dekang e-liquid have two kinds of bottles packaging.
One is with Dekang Brand logo, another without, but whether it is the kind of bottles packaging, The Dekang e-liquid bottles have the Dekang company logo “YNDK”.
This “YNDK” flag was done on the cap. Not very obvious, but it can be seen when you look at the side, it is the most obvious identification to identify Dekang e-juice. Nobody to produce the bottles specially unless Dekang company.
Here is a picture show: