Please set flexible tolerance range when setting management value base on considering the various mass production in case being [present status OK]. In addition, please write the reason why could be approved only current part range. The setting tolerance of plus / minus is basically necessarily to be engineering change in case setting management value in opposite direction. However, if it would be not engineering change by some reason,please reply by add the details of explanation and reason In case it would be drawing engineering change , please inform engineering change issue plan another day.