hệ thông báo cháy trung tâm bị kích hoạt. Mr. Tra Thanh Vu, staff of bảo trì, kiểm tra kho gas của Vuvuzela thì phát hiện hệ thống gas của Vuvu bị xì gas
the central fire alarm system was activated. Mr. Vu Bar Investigators, staff of maintenance, check the gas depot of the Vuvuzela, the gas system of detection was Vuvu sound blast gas
central fire alarm system was activated. Mr. Thanh Vu investigation, staff of maintenance and inspection of the Vuvuzela gas inventory system, the gas detection of gas leaks VUVU