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The company has been devoting to product development and renewing. Aiming at metallurgical industry, iron and steel company's coking system and petrol-chemical oil refining system, the company developed new environmental protection equipments by itself, i.e. frequency variable multi-chain driven tar separator and revolving drum sulfur shaping machine. These two products have gained certificates of patent issued by National Patent Bureau and been widely applied in oil refining system and coking system.In 2008 we have manufactured trolley system and facilities for ZHONG GANG Group .

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