shenzhen challenge technology co., ltd
公司简介
we are a direct and professional manufacturer of mp3 & cd player with the volume production capability. we have in the line of audio/video products for over 10 years. our products are directly for oversea market. the whole process is in conformity with iso9002, fcc, ce standard.with our powerful r&
北京市朝阳区广渠门外大街8号优士阁B座1703 电话: 010-58612588 传真: 010-58612665
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