Período : 2017/9/21 - 2024/9/20
organismo emisor : Shenzhen Times Testing Technology Co., Ltd.
Período : 2016/12/15 - 2020/12/15
organismo emisor : Shenzhen United Testing Technology Co., Ltd.
Período : 2016/4/14 - 2020/4/14
organismo emisor : United testing technology(Hong Kong)Limlted
