Changchun DK4

Changchun DK4 — export metro carriages for the Pyongyang Metro. 112 carriages were delivered. Changchun only produced the DK4 as Mc (driving motor) cars. Compared to the earlier DK3, the DK4 featured a redesigned resistor system to safely descend the 45‰ gradients of the Pyongyang Metro; it also featured fan-forced ventilation. The carriages were supplied under a 30 year interest-free loan.

长春DK4为长春客车厂的出口车型，与北京地铁DK3的区别在于更强的爬坡能力而且配备通风机。112节车厢以三十年无息贷款交付了朝鲜。

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