How to inquire about the cost consultation in government procurement of central state organs?

The difference between Beijing government procurement center and central government procurement network. First, the Beijing Municipal Government Procurement Center at different levels is a place for purchasing government supplies for the Beijing Municipal Government. Second, the main body of financial allocation is different. The Beijing Municipal Government Procurement Center has the approval from the Beijing Municipal Government, and the Beijing Municipal Finance Bureau has the approval from the State Council or the central departments. Central government grants. Third, the website of Beijing Municipal Government Procurement Center is different.