Tatra tram types: T4R, T4D, B4D, K2, K2S
The T4R models were new and brought in Iasi - Romania, in 1978 and 1980 from the Czech Republic.
The T4D and B4D models came in Iasi in 1998 from Halle - Germany.
K2 and K2S models are running in the Czeck Republic and Slovacia.
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