The powders they use vary from surface to surface.

他们使用的粉末类型因表面而异。

North Korea callas it the Pukguksong- 2, a surface to surface strategic missile which it claims can be tipped with a nuclear warhead.

朝鲜称其为 Pukguksong-2，这是一种地对地战略导弹，它声称这种导弹的尖端可以装有核弹头。