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Quality Control


From raw materials’ selecting, smelting, crushing, finished products’ testing, packing, to pre-shipment inspecting, every step, Zhongcheng people are all implementing strict quality control.


Fine inspection equipment, complete testing methods, advanced management


      ● One of the earliest manufacturing enterprise in silicon industry approved ISO9001 by the international certification institution SGS 

      ●  Leading ICP inspection equipment and size analysis equipment

      ● Adopting international chemical testing methods

      ● Compliance strictly to ISO9001 standards for production management and quality control


 

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