Ammunition made in Germany for Sweden generally, with small arms ammo anyway, had boxes in Swedish. We know this from Czech-made 7.9 x 57 ammunition with Z and SB headstamps, albeit in the German headstamp style and content, and as I recall, also from boxes of the “Z” headstamp 9 mm Para, made in 1942, again with a German-style headstamp other than the factory designator.
I thiink from 1942-1943, it would be unlikely that Germany was supplying ammunition to Spain packaged like that, due to Germany’s own war needs, and with the Spanish Civil War over for several years.
Much more likely, the boxes from S & B in the German Military style of label were for the Werhmacht and the others for police or para-military organizations.
Slovakia produced some ammunition, at Waffenwerke Brünn A.-G., Werk Povazska Bystrica, in at least 7.65 mm Browning and 9 mm Kurz, using the dou. code, brass case with only the caliber other than the code, and steel case with a straight-out dou.- coded case with headstamp, including the code, totally in the German style. The 7.65 mm is, it seems, a very rare headstamp, confirmed here from my own collection, while the 9 mm Kurz is relatively common.
Clarification: The dou.-code 7.65 was only with brass case and the 9 mm Kurz with that code only in steel case. Above, I made it sound like I meant they both came in brass AND steel cases, which is incorrect. Sorry about that.