On April 4^th 2018,President Xi Jinping visited Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences.🧜 In exhibition hall, when he saw titanium spherical shell for 4,500 meters deep sea vehicle, he shook hand🎶s with Jia Shuanxiao, General Manager of BAOTI, with elation and said “thanks for the contribution your company has made to the deep sea development.”