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2017ZhengzhouSanMillExhibition...
2015BeijingGlassShow...
2014RussiaHardwareExhibition...
2014GermanWireExhibition...
2014ShanghaiWireExposition...
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2014ShanghaiGlassExhibition...
ZhechengHongxiangSuperhardMaterialCo.,Ltd.
2009ShanghaiExhibition.
chamferingmillingandgrindingtools.
diamondcupwheel.
diamonddrillbit.