Xi' an dangerous transport qualification certificate can't get through.

Not during working hours. Xi 'an, referred to as "Gao", was called Chang 'an and Haojing in ancient times. It is a prefecture-level city under the jurisdiction of Shaanxi Province, the capital and sub-provincial city of Shaanxi Province. The city's dangerous transport qualification certificate is managed by Xi Transportation Management Office. The business hours of this enterprise are from 8 am to 6 pm, so I can't get through because I don't dial during business hours. The qualification certificate of dangerous transport is the qualification certificate of dangerous goods transport drivers.