There is also China Bidding Network, which is not cheap either. I have consulted before, and it costs six or seven thousand yuan a year. . .
In fact, most websites like this are similar in information. The bidding resource network I use now is cheaper than the first two. Support to read some bids for free every day, with complete information. National information can also be found. More importantly, it also supports subscription and push, and you can find the bidding dynamics anytime and anywhere. I still use it very well. I suggest you have a look.