Joke Collection Website - Bulletin headlines - English Translation How do you say "non-flammable goods" in English?

English Translation How do you say "non-flammable goods" in English?

No inflammable items. No flammable items are allowed. This is the slogan on a warning sign I've seen.

The inflammable items are flammable items.

So flammable items are non-flammable items, and in- is the prefix, indicating negation.