For discussion

ht_opp_bak.pdf (ht_opp_bak_novaya.pdf 811 kb)

161.1.01.23_himichni_tehnologiyi__lbr_vvoditsya_v_diyu_z_01.09.23_rbr_.pdf (161.1.01.23_himichni_tehnologiyi__lbr_vvoditsya_v_diyu_z_01.09.23_rbr_.pdf 2394 kb)