The hottest printing quality in Beijing ranks seve

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Beijing's printing quality ranks seventh in the country

the quality ranking is the most suitable for the batch inspection of springs on the production line. When the sorting is low, Beijing's printing products ranked 28th in the country, and jumped to seventh in the national ranking in 2004

it was learned from the just concluded Beijing publication printing quality work conference that 2273 products in Beijing won the first-class title in the first-class recognition work of the publication administration in 2004, 5.6 times that of the previous year, and won the bronze medal issued by the publication administration. Beijing Zhongke Printing Co., Ltd., Beijing foreign language printing factory and Zhongqing printing factory ranked first, seventh and eleventh among the national printing enterprises of easy-to-use books, respectively, and won gold, silver and bronze awards

source: Beijing Evening News

the grinding surface of your sample and the polishing disc should be absolutely parallel and evenly pressed gently on the polishing disc. After the experiment is completed, state:

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