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2016ShanghaiGlassExhibition...
2015ZhengzhouSanmoExposition...
2013Beijingglassexhibition...
2013ShanghaiCableShow...
2013DubaiStoneFair...
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2017ZhengzhouSanMillExhibition...
qualityassurance.
resinbondedwheel.
syntheticdiamond.
workshop.
workshop3.