宁波海曙永丰电子有限公司(dsw audio & security equipment ltd. )
公司简介
established in 1998, dsw audio & security co.,ltd has specilized in manufacturing piezo siren & alarm, electrical siren, battery backup siren, horn speaker ,car speaker,car alarm, home alarm, loudspeaker , multimedia speaker and so on in china.
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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