Original imported SCUDs are probably completely replaced by the larger Hwasong missiles although the TELs (the truck) would largely be from the original SCUDs.

虽然运输、起竖、发射车（TEL）基本上还是与原装飞毛腿导弹相配套的，但是最初进口的飞毛腿导弹可能已经被体形更大的火星系列型号所替代。

youdao

The availability of photos quickly thins as users scroll into the North Korean countryside and dries up almost entirely around more controversial areas marked on the map, like the Yongbyon nuclear complex and what Google labels the Yodok and Hwasong gulags.

CNN: STORY HIGHLIGHTS