中国船舶重工集团
QSZ-II submersible is a type of diving equipment developed in the People's Republic of China, and in addition to being used as an manned atmospheric diving suit, it can also be used as a remotely operated underwater vehicle (ROUV), an application frequently practiced by one of the users of QSZ-II submersible, the People's Liberation Army Navy (PLAN). QSZ-II submersible is developed by the 702nd Research Institute (中国船舶重工集团公司第702研究所) of China Shipbuilding Industry Corporation (CSIC).