“质量第一，诚实守信”的原则。

The principle of "quality first, honest and trustworthy".

youdao

服务理念：质量第一，客户至上，诚实守信。

Our Motto: Quality first, customer foremost, honest and trustworthy.

youdao

服务理念：质量第一，客户至上，诚实守信。

Our Motto: Quality first, customer foremost, honest and trustworthy.

youdao