, , .

“” 

                          (2-4 .) - 1 .

                         (~80 .) - 1 .

                           (3,5x2,5 .) - 1 . 

                            d=25 - 5 .

                          , 12' (30 .) - 1 .

                        - 100 .

                 - 3 .

                                              

           – 28 100 . ( - ).

, . 

  .                                               .                                   .