Qualification requirements of suppliers :1. The casting of aluminum conforms to Article 22 of the Government Procurement Law of the People's Republic of China. 2. It complies with Article 17 of Regulations for the Implementation of the Government Procurement Law of the People's Republic of China. 3. Through the "Credit China" website and the Chinese government procurement website, it has not been listed in the record list of untrustworthy executors, parties of major tax violations and commitments of serious government procurement violations. 4. Ways to obtain the consulting documents: Login to Shandong Province Government Procurement Website of China Casting Parts for registration, and obtain the consulting documents through the following ways :1. 2. Suppliers who intend to participate in the procurement activities shall register at the site of the procurement agency and provide a copy of the business license (seal); Those who fail to register will not be accepted. 3. Successful registration does not mean passing the qualifying examination.