B1 floor. According to the layout of Lanzhou Vientiane City shopping mall, the B1 floor is a parking lot and a supermarket with a large flow of people. MUJI chose to use the B1 floor to facilitate customer purchases. MUJI is a comprehensive home textile brand in China, managed by Beijing MUJI Investment Co., Ltd. The MUJI trademark was registered in 2000, involving the 24th category of textiles.