SOFIA (Bulgaria), October 24 (SeeNews) -Â Bulgarian machine engineering company Hydraulic Elements and Systems (HES) [BUL:4HE] said on Thursday that its net profit fell to some 3.63 million levs ($2.07 million/1.86 million euro) in the first nine months of 2019 from 3.95 million levs in the same period of last year.