The quality of BK0 1 meets the requirements. If the quality of BK02 is not good, it should be prevented, and the quality cannot be tested. The working standard of BK03 is zero defect, not almost good BK04, so as to avoid double standards. There can be no mistakes. The quality of BK05 is measured by the unqualified price. The price of BK06' s non-compliance is: wasting time, manpower and material resources. BK07 is the cornerstone of zero defect: prevention system control and process control. BK08 Establish a continuous improvement quality management system to achieve zero defects. BK09 quality is ballet, not hockey BK 10 is the perfect realm.