2. Submission of materials. After the supplier's online registration information is submitted, it is necessary to fill in the application form for government material supplier registration in the corresponding procurement agency, and provide copies of some enterprise information and related materials.
3. Qualification examination. According to the information provided by suppliers, the purchasing organization reviews the qualifications of suppliers. After passing the examination and approval, it obtained the authentication number of unified government procurement network, became the supplier of government procurement center, and entered the e-commerce platform of Minmetals.