????? ??????
- Material: ??, ??????????? ??? ???
- ????? ??: 0-900 ????
- ?????? ??: 0-5 ????, 5-15 ????, 15-31.5 ????
- ?????? ???????: ???? ?????????? ????????? ??? ??????? ???




???? ?????????? ?????????????????? ??????? ???? ????? ????????? ??????? ????? ??? ??, ????? ????? ?????????? ??? ??.
???? ??????? ???????????????????? ?????? ????? ???? 800 ?? ???? ?????? ??? ??. ????? ????? ???????? ??????? ?????????? ???????? ?????? ??.
???? ??????????????????? ????????? ?????? ?????? ?????? ?? ???? ????????????? ?????? ??????? 10%-20% ????? ??; ???????, ????????? ???????? ???????? ????? 80% ????????? ??????? ????? ????? ???? ??.
???????? ??????? ????? ?????????? ??????? ???????? ??????, ??????????? ???? ??????? ??????? ????? ???? ??.