Kinda off-topic, but in regards to aircraft, only the following nations should be able to build planes at all: US, France, UK, Netherlands, Germany, Italy, Sweden, Poland (transports only).
Grossly incorrect. Poland had a full range of fighters and light and medium bombers (and prototypes for heavy fighters and transports).
Then we’ve got:
Spain (licensed the CR.32 and Bf 109 fighters and
He 111, though the latter two only emerged by the end of the war)
Belgium (licensed built small series of the Hurricane and the Fairey Battle, also bought licenses for but never got around to building several Italian aircraft, including twin-engine bombers)
Switzerland (the D-3800 fighter series based on the French MS.406 and the C-3600 light bomber series)
Denmark (license built small series of Dutch D.XXI fighter and bought one for the G.I heavy fighter as well)
Finland (licensed the D.XXI also, small run of the indigenous Myrsky fighter, prototypes of a couple others, licensed the Bristol Blenheim bomber)
Czechoslovakia (mass produced the B-534 fighter and the Tupolev SB-2 under license as the B-71)
Hungary (license built the Re.2000 fighter as the Heja, the Bf 109, the Me 210, the Ju 52, had a few prototypes of their own as well)
Romania (licensed and indigenously designed fighters, also built a modified SM.79 bomber under license)
Yugoslavia (small runs and prototypes of several domestic designs plus licensed Blenheim and Do 17 bombers)
China (kit assembled or licensed small runs of American fighters and light bombers)
Argentina (small runs of licensed American fighters and couple domestic bomber designs)
Canada (massive production runs for the Hurricane, Blenheim, Mosquito, Lancaster, Hampden, and Catalina under license)
Australia (domestically designed Boomerang fighter, Woomera bomber prototype, license built Mustangs, Beaufighters, Beauforts, and Mosquitos)
Plus a number of other countries that built small trainer planes, some of which had unfulfilled plans to build combat aircraft either of their own design or licensed from an outside power (South Africa, New Zealand, Bulgaria, Greece, Turkey, Norway, Latvia, Lithuania, Portugal, Mexico, Brazil).
One more special case is Austria, whose aircraft industry built a handful of licensed trainers prior to the Anschluss but also ended up building 8,000 of the Germans’ Bf 109s in the Wiener Neustadt factory.