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In March 7, 2005, State General Administration of quality supervision, inspection and quarantine in China Quality Inspection Department of the letter [2005]107 file, agreed at the base of Zhejiang province standard testing center, the national standard pa

In March 7, 2005, State General Administration of quality supervision, inspection and quarantine in China Quality Inspection Department of the letter [2005]107 file, agreed at the base of Zhejiang province standard testing center, the national standard parts product quality supervision and Inspection Center