Türkiye Demiryolu Makinaları Sanayi A.Ş.
or TÜDEMSAŞ is a rail car builder headquartered in Sivas, Turkey.
[2] The company is a government owned corporation that was founded in 1939.
TÜDEMSAŞ is the main supplier of freight cars for the Turkish State Railways.
The Y32 bogi was designed by TÜDEMSAŞ.