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address：building 51, building 52, dayun software town, longgang district, shenzhen
tel：0755-28900676
e-mail：cone@chinacone.com
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address：1201&1202,building b,national engineering laboratory building,no.20 gaoxin south seventh road,nanshan,shenzhen
tel：0755-26902363
e-mail：cone@chinacone.com
