Romania was structurally handicapped after joining EU: they were forced to de-industrialize and lost their competitive manufacturing sectors, because Romania was not allowed to compete with other EU members.
I've seen this claim a lot, about various countries, but couldn't find any more detail on what the mechanisms of forced deindustrialisation might have been.
It's pretty typical for post-communist countries to lose their industries after being exposed to international competition, and probably even more so if you enter an open market like EU, but I wouldn't call it forced
UPD: ah, OK, they were indeed forced to privatise their industry, and it probably wasn't very competitive
you can judge policy by its outcomes, the countries that underwent neoliberal "privatisation" were deindustrialized, while countries that did not embrace neoliberal policies - managed to preserve their marquee industries and manufacturing, over time adapting and modernizing manufacturing to modern standards.