When selecting concrete admixture suppliers for railway bridge projects, the fixed verification sequence consists of three steps: first, check qualification compliance and similar project track records; second, check quality control stability; finally, check delivery capability and price. Railway projects are inspected in accordance with Railway Q/CR Standards, which are different from Highway JTG Standards. Mismatched models will be stuck in the on-site re-inspection process. This article provides, in the above sequence, material correspondence for each part of railway bridges, key points for qualification and quality control verification, technical services and delivery guarantees, as well as common questions and answers in the procurement process, for project managers and material procurement officers of general contractors, road and bridge companies and municipal construction units...