At the period of goods shipping,Post-service Department will make a quality Questionnaire as per quality terms of order,and then the quality questionnaire will be sent to customer,after customer checked the goods,customer will be required to response the quality questionnaire to Dilicn's Post-service Department,after Post-service Department got responsed questionnaire,the quality questionnaire will be submited to Manager office , Sales Department and Quality Control Department. Client's quality questionnaire will be as final quality conclusion to compare quality report supplied by QC of Quality Control Department. After Manager Office compared and evaluated the quality questionare to Quality report,Manager Office will decide a conclusion for this order as per customer's demand.