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01
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02
???? ???? ??????????
???? ?????? ????? ???? ?????, ????? ??? ????? ???? ???? ??????????, ??? ?????? ?? ???? ????? ?????? ????? ??? ?????? ????? ??? ?????? ??????? ???? ?????, ?? ????? ????? ?? ????? ???? ??????. ???? ?? ?????? ????? ???? ?? ?????? ?????? ?? ????? extruded.
2.1 ??? ?????? ?????
? ???? ??????? ???? ???? ???? ???? ???, ????? ??? ??? ?? ???? ?????? ??????? ?????. ?? ?????? ???? ??? ????? H-13 ???? ?????? ???? ??? ????? ???? ????? ?? ?????????? ??? ????? ???? ??? ???????.
????? ??????????? ???? ??, ????? ???? ????????? ???? (???) ??? ?????? ???? ????????? ????? ?????? ????? ?????? ????? ??? ??.
2.2 ????? ???? ????
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2.3 ??? ?????? ????
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03???????? ?? ????? ???? ?????????
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2) ?? ????
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