Chongqing Changjian Technology Co., Ltd.

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Chongqing Changjian Technology Co., Ltd. Quality Info

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From 2019,

We developed CJ790-4G, CJ990-4G, and passed the CE, ROHS certification;

Fom 2020,

We developed CJ280, CJ220, CJ230 series, and passed the CE, ROHS certification;

In 2020,

We got the ISO certification;

Chongqing Changjian Technology Co., Ltd.

Contact Person: MissLynn

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