??????????:????? ????????? ???????? ?????, ????????? ??? ??? ????????? ???? ?????? ???? ?????????? ????-??? ??????? ????????? ?????? ????? ?????? ?????????? ????????

????? ????????? ???????? ?????,?????? ???????????? ??? ??? ????????? ???? ?????????? ????-??? ??????? ????????? ?????? ????? ???? ???????? ?????? ?????? ??????? ??? ???, ??? ????????? ???? ???????, ????-????????? ??? ??? ????????? ??????? ????? ???


?????? ????? ??????? ??????, ??????????? ?? ???? ??? ???? ????, ???? ????? ??? (weld seam) ????? ??? ????? ?????? ????? ?????? ????????? ????-???? ???? ??????? ?????? ??? ??????????? ?????? ??????? ??? ?? ?????? ???? ???? ?????? ????? ????-???? ???? ???????? ??? ?????? ???????, ????? ??? ????? ???????????? ??? ????? ??? ???????? ?????????? ???? ????


??? ?????? ??? ??????????? ???, ??? ???????? ?????? ?? ??????????? ??????? ???? ???? ?? ?????? ??? ?????????? ??? ???, ??????, ??-??????? ???????????? ???????? ????????? ???? ????? ???? ????, ?????? ????? ???? ??????????? ???????????? ??? ????? ???? ??? ???? ???????? ????? ???? ??? ???????? ??????? ??????? ?????