For Inferior Quality (由于质量低劣而抱怨)
With reference to our Order No. 315, we are compelled to express our strong complaints for the inferior quality . Compared to the sample No .169, the arrived self-adhesive correction tape is very transparent and does not satisfactorily cover the error being corrected .
We shall be glad to have your explanation of this inferiority in the quality , and also to know what you purpose to do in this matter .