FRP ????? ?? Spiral Chute ????? ?????? ????? ??????, ???? ??????, ?????, ??????? ????? ?????? ????????????. ???? 1977, ???? ???? ???? ?????, ??? ?????, ????? ????? ???? ?????, ????? ???, ???, ??? ???, ??? ???? ????, ???? ???????, ?????? ?? ???? ????, ????? ????, ?????????, ??????, ??????, ??????, ?????? ??????, ??????? ??????, ?????? ??????, ???? ????? ????, ?????? ???? ????? ??????? ?????, ?????? ?????, ?????? ????? ?????. ?? ???? ?? 、 ???? ???? 、 antirust 、 ???? -???????.

??? ??? ???? ?????? ?????, ???? ????????, ?????? ????? ????? ??????? ????, ??????? ???? ???.

????? ?????? ????? ???????? 0.3 - 0.02 ????????? ???? ???? ?? ????? ????, ????? ???? ???????, ??????, ???? ?????, ?????? BR, ?????, ???????, ???? B ????? 、 ???????, ??, ??????? ???????, NB ???????? ??? ???? ????????? ?????? ?? ???, ????? ?????. , ?? ??????, ??????? ???? ??? ????? ?? ???? ??????, ??? ?????? ??? ????, ?????? ?????, ???? ??? ?? ??? ??? ???? - ????? ??? ????, ???? ????, ??? ???, ???? ????? ??, ????? ?????, ????? ???? ????? ????? ????? ???? ??? '.

?- 12 ????? 2025 ??? ?????? ??????? 24 ???? ?? LZ1200 Spiral Chutes ????? ???? ?- 13 ??? ?????.