Is the bronze seal of Gan Long Chen Han true?

Really. Since Kangxi of the Qing Dynasty, emperors of all dynasties have had this seal, such as Chen Han of Yongzheng and Chen Han of Jiaqing. In addition, according to the statistics of Gan Long Zhu Bao, Emperor Qianlong had 24 pieces of dry Chris Lung seals, and at present there are 9 pieces in the Palace Museum. The dry Chris Lung seals are in the traditional standard format and are sealed in Yang Wen.