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guanlan town,longhua district,shenzhen,china
factory headquarter
address:itzr technology & industrial park, zhangge community,guanlan town,longhua district,shenzhen
tel：0755-27989200 0755-28230030
fax：0755-29845851
overseas marketing dept/r&d center
address:room 903a,block a of first stage,chuangxin tech-square,tian'an digital center,futian district,shenzhen
tel：0755-23892150
fax：0755-82803915
