Carefully review the casting supplier's response documents; The evaluation of the response documents by the evaluation committee only depends on the response documents themselves and does not depend on any factors other than the response documents; 2. Unified principle: the review committee will review the response documents of all suppliers in accordance with the unified principle and method; 3. The principle of independence: the evaluation work shall be carried out independently within the evaluation committee without any interference and influence from external factors. The members of the evaluation committee shall bear personal responsibility for the expert opinions issued; 4. Confidentiality principle: members of the review committee and relevant staff will keep trade secrets for suppliers; 5. Comprehensive principle: the evaluation committee will make comprehensive analysis and evaluation on the indicators of suppliers, and will not evaluate suppliers based on the merits of individual indicators; Evaluation Methods The assessment team will review the response document in two phases. Stage 1: Determine the final purchase requirement plan. Suppliers who meet the requirements will have the opportunity to quote again. The second stage is comprehensive scoring. After the initial review is approved, the evaluation committee will conduct further comparison and evaluation according to the evaluation criteria and methods identified in the competitive consultation document. This consultation adopts the comprehensive scoring method. The members of the review committee will make a comprehensive evaluation on the response documents submitted by each supplier. The review committee will make a final conclusion based on the opinions of all the members. 1. The preliminary review of the prequalification response document is divided into qualification review and conformity review. Qualification examination refers to the examination of qualifications and certificates in response documents according to laws, regulations and competitive negotiation documents; Compliance inspection refers to the casting manufacturer's review of the response to the substantive requirements in the response document according to the requirements of the competitive negotiation document. The respondent who fails the preliminary examination will not be allowed to proceed to the next round of quotation.