The workers lost their books.

Maybe it was accidentally deleted. Workers' children specially set up a bookkeeping section for workers' friends. The loss of the workers' children's bookkeeping may have been accidentally deleted. You can contact customer service to ask. Workmate APP is a job-hunting software that contains engineering information such as building recruitment, building talents, site recruitment, and finding a construction team. Using Big Data and internet plus to build an efficient and convenient one-stop information service platform for job hunting.