销售服务上以国际同行中独有的产品系列号标注，并建立“三包服务卡”式的跟踪管理。
Sales services to international competitors unique product serial number identification, and the establishment of a "warranty CARDS" - tracking management.
销售服务上以国际同行中独有的产品系列号标注，并建立“三包服务卡”式的跟踪管理。
Sales services to international competitors unique product serial number identification, and the establishment of a "warranty CARDS" - tracking management.
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