Which exit is Hangzhou Vientiane City subway station?

Does the subject want to ask "which exit of Hangzhou Vientiane City subway station is the exit"? Leave B3. According to Hangzhou local treasure's inquiry, Hangzhou Vientiane City is located at Jiangjin Road Station of Hangzhou Metro Line 4 and exit B3 of subway station. Hangzhou Vientiane City covers an area of 150 mu, with a total construction area of 800,000 square meters (including underground). With ShoppingMall as the core, it will become an urban complex project integrating a large shopping center, a first-class office building, a super five-star hotel Park Hyatt and a noble residential Yuefu serviced apartment.