Usually ten days. Xi Railway Bureau usually sends resumes within ten days. The Railway Bureau is an important part of the three-tier railway system in China, and it is a wholly-owned holding company of the State Railway Group, a central enterprise unit. Generally speaking, Railway Bureau refers to 18 Railway Bureau Group Company managed by China Railway Corporation. By the end of 20 17, 18 Railway Bureau (Company) had completely changed its industrial and commercial registration, and all railway bureaus were renamed as "China Railway XX Bureau Group Co., Ltd.", and 18 Railway Bureau Group was still a wholly-owned company in China State Railway Group Co.,Ltd..