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2014 AHEMA exhibition in Germany
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2016 Dussseldorf aluminium exhibition in Germany
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2016.8.8 Factory Day in Shandong
In Weihai, Penglai, Yantai -
2016 Shanghai international bearing exhibition
Shanghai guangda conference center -
2016 Shanghai international aluminium industry exhibition
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2017 Shanghai ceramic exhibition
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2016 in Germany
