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Our company has won 6 Chinese utility model patents, 2 invention patents. Technical team consists of 5 senior engineers , 6 middle-level engineers, 10 assistant engineers. Since 2006, the company has run ISO 9001 quality system. At Shanghai plant, the main functions are research and development, marketing and small job works.Crusher, stone crusher, aggregate processing equipment for,,Zenith is one of the biggest manufacturers in Aggregate Processing Machinery for the sand & gravel, quarry, mining, construction and recycling industries. Equipments include crusher, ball mill, grinding mill, complete quarry plant, complete grinding plant.Roadheader For Sale|Roadheader manufacturer in China,,No. 201 Dongkai Road, Songjiang District Shanghai, China.,EBZ260 Roadheader for the construction of roadway tunnel in Guiyang City. EBH120 Roadheader for Water Conservancy Project in Sichuan Mianyang. EBZ260 Roadheader for highway tunnel. EBZ200 Roadheader for Marble rock, hard sandstone, fractured rock hardness rating F4.