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The quality management system of Darong passed the annual supervision and audit.
November 12th – 13th, 2008, the specialists of China Certification Center carried through spot check on Darong’s quality management system and confirmed our quality management system conforms to the requirements of annual supervision and audit.
time：2007-9-26 read：8724
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Products：双氰胺 单氰胺 石灰氮 氰胺化钙 Dicyandiamide Cyanamide Calcium Cyanamide