Since the customer does not return the sample, the ministry can not be analyzed in detail by describing customer information and sample pictures, we hypothesized that the reason for the poor:
As the customer did not send back the sample, my department can not carry out detailed analysis, through the customer description information and sample pictures, we speculate that the reasons for the adverse is:
As the customer didn't send back the sample, our department was unable to conduct detailed analysis. Based on the customer's description information and sample pictures, we speculated that the cause of the defect was:<br>