Guan Nan's products are highly competitive, and the anti-counterfeiting hologram stamp must be designed in the conspicuous place of the package. However, the general hologram label is attached to the back of the seal or the package. How to properly place it on the front of the package? In the color plan, Guan Nan loves the black system. During the visit, Guan Nan even found that the toilets are all polished black marble, and once again confirmedthat the brand identification did not come from the interview, it was there, but it has not yet been unearthed!