???? ????
??????
??? ????? ?????, ???? ???? ??? ??? ???? ?????? ?? ??? ???, ????? ???? ?? ????? ???? ??? ???? ??, ?? ?? ?? ???? ?? ???????? ????? ????. ????? ????? ??? ???? ????.
????? ???? ????? ????.
???? ????? ?? ???? ??? ?? ????? ???? ??? ??? ???? ????
???? ????
??? | ??? |
???? | ? 550N ??? |
????? ???? | 250M/m㎡ |
? PVC ???? ??? | 3.6 ??/㎡ |
???? ???? | 0.4 ?.? / ? 2 |
??? ??? | -35 ℃ ??? 70 ℃ |
???? ?????
?????? ???-???? ???? ??? ????
???? PVC ???.
????? ??? ??? 73% ????? ???? ???? ??? ??? ???? ????? ???? ???? ??.
??????? ??? ????? ??? ?? ??? ??? ?????, ????? ?? ??-????????.
?????? ???? ??? ??????? ???? ??? ????? ? ?? ????? ???? ??? ???? ??? ???? ?? ??? ???? ????? ??????? ??? ????? ??? ??? ????? ??? ???? ???? ?????
???? ??? ????? ??? ???? ???? ??? ???, ??? ???? ???? ??? ??? ???? ?? ??.
????? ??????? ??? ???? ????, ???? ??????? ??? ?? ??? ?? ??? ???.
???? ???
???? ????? ??? ??????
?? ?????? ???????? ??
????? ???? ???
???? ????? ????
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????? ?????
