Hebei One Window app software is the license plate symbol. Mainly to provide users with industrial and commercial electronic signature authentication, certificate inquiry and other industrial and commercial business services. The applicant only needs to operate on the "one window" system, and can complete many businesses such as enterprise establishment registration, official seal engraving and tax-related matters. If you can't turn it off after turning it on, it's because of network delay or congestion. Just wait a while before the operation.