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1, ?????? ??????: ??? ???, ??? ?????? ?????????? ??? ?????? ??????. ???? ?? ?????? ???????????????, ??? ??????? ??? ??? ???? ??? ?? ???????????????? ??? ?????? ??????, ???????? ??????? ??????? ????? subsequent ???????? ??? ????
2, ????????? ??????????? ???????: ????? ??????? ??? ???? kwalite? ????????????? ??? ???????????? ?????????????, ????????????? ??????? ????? ????? ??????? ??? ????? ???????: ???? ?????????, ????-???????? ?? ??????????? ????????? ???????????????? ???????? ????? ???????????? ????????????????????. ??? ??????????? ??? ????????????? ???????? ??? ?????. ???? ??? ????? ???????? blank defects ??? ?????? ????.
3,????? ??????, ????? ???????: ????? ????????????? ????? ??? ?????, ????????, ??? ?????, ????? ??????????? ???? ????? ?????? ??????, ???? ???? ????? ?????? ???????, ?? ???????????? ??? ?????????? ???? ??? ????? ?? ?????? ?? ??????????????????? ??? ??? ????? ??? ??? ?????, ???? ????? ??????????? ????? ?? ?????? ??? ????? ???? ??? ?????.
3, ?????????? ?????????: ?? ?????????? ????????? ??? ??? ?????? ???????, ??? ????????, ????? ?????, ?????????? ????????, ?????? ?????????, ??., ???? ????? ????? ??? ??? ?????? ???? ??? ??? ???????? ????. ?? ????????? ?????????????????? ????? ???????????? ????????????????? ??? ???? ????????? ??????? ??? ????? ????????. ????????, ??????????? ?? ???????? ???? ???????????? ????????, ????????? ?? ??????????????????, ???????????? ???????? ??? ???????????? ????? ?????
???? ??? ????? ???? ?????? ????? ?????????? ???????? ????? ?????????? ?????????, ???? ???? ?????? ?? ???????? ??? ??? ???????? ???????????.