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Abstract Attachment download: 1. Notice of the recommendation of the Chinese machine association on the benchmark; 2. Notice of the Ministry of Industry and Information Technology on the recommendation of the quality benchmark 230 and attachments Attachment download: 1, 
Notice of the China Machine Association on the recommendation of the benchmark
2. Notice of the Ministry of Industry and Information Technology on the recommendation of quality benchmark 230 and accessories
Notice of the China Machine Association on the recommendation of the benchmark