As product quality issues, return or replace free of charge for users;

定为产品质量问题，为用户无偿退货或更换；

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In the production site timely feedback product quality issues, process problems.

在生产现场时及时反馈产品质量问题、工艺问题。

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Keep the QC manager and product engineer informed about product quality issues and status.

将产品品质问题和状况及时告知品质经理和业务工程师。

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Since the product is free, there is very little consequence for them to have quality issues.

FORBES: Google Maps - The New Standard