October 30 (SeeNews) - Steel radiator manufacturer Korado Bulgaria [BUL:4KX], part of Czech Republic's Korado Group, said on Tuesday that its net profit rose to 5.5 million levs ($3.2 million/2.8 million euro) in the first nine months of the year from 4.2 million levs in the same period of 2017, following an increase in revenue.