<the mole> is an interesting doku. But the North Korean arms catalog (pic 1) looks like a version of <Russia's Arms>, which is printed by a publisher in Moscow. On the other hand, it is possible for the North Koreans to directly use the book for sales materials.

and it gets more interesting. the 240 mm rocket looks like authentic North Korean.

and this is fascinating....a ASM codenamed SS-N5 for export purposes...doesn't look Russian, but pretty North Korean....like their early prototype of the Kn-35 copy?

the paper bag is printed with Chinese <documentation dossier>

122 mm guided rockets for sale. (This is my first time seeing it).

And this is definitely North Korean, an ATGM of presumably beam-riding type. Export name Phoenix-4M

They are also selling the R-60s. Either original, or the DPRK already reverse-engineered this missile. cannot tell what are written on the body, or what language.

the first item, Kornet, could be this.