What is the relationship between Beijing Wofangkuan Communication Technology Co., Ltd. and Beijing Unicom?

I think friends who use Wofangkuan broadband at home should know that Wofangkuan is a sub-broadband product of Beijing Unicom, and Wofangkuan is Beijing Unicom. That's what their salesmen said when they came to install it before. Broadband is Beijing Unicom's link, bandwidth, but their company is responsible for on-site installation, card opening, post-maintenance, and the service attitude is really good.