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???? ??????? ???? ????????? ?????? ?'? ?????????????? ???? ???? ?? ????? ??? ??? ?????? ???? ?????? ??????? ??? (?? ???? ?????? 50 ????? ?????)?
??? ??????? ?????? ?????? ?'? ???? ??? ???????????????? ??????, ??? ????? ????? ?????????? ??? ??????? ???????
???? ??? ??? ????????? ???, ?????? ??? ?????????, ????????????? ??????? ????, ??? ??? ??? (???? ????? ???? ?????????? ?????? ?? ??? ???? ??????? ?????), ??? ?????? ??, ??? ???? ????
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???????????????? ??? ??? ???? ????????? ?????:
?????????????? ?????????? ????????? ????????? ???? ??????????? ?????? 520 ~ 540 the ? ?????????????? ??????? ??? ???, ???? ?????????? ????? ??? ?????????????? ???????? ???? ????? ????? ???? ????, ??? ????? ??????? ???????? ????? ???? ???? ??? ?????? ????? ??????? ???? ?????? ???????? ????? ??? ??? ?????????? ???? ?????
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??????? ??????? ??????????????-?????????? ?????? AA6063 ??? ??? ????????? (?????? 160 ~ 180 ?????? / ????) ??? ???????????????? ???????
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?????????????? extruded???? ????????????????:
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