radio field造句

• Serving for your usa canada eu p . r . c and aus c - tick certification . gathering with professional engineers and supporting by our testing equipments , sem . test take our good service with product designation , technique debugging , free training and even tcf standards writing in the radio fields
  深圳信特斯电子技术服务有限公司sem . test是一家专门从事进出口商品的电磁兼容emc安全safety射频r tte和环保rohs产品认证及技术咨询服务的专业检验机构。