Can I apply for two plaques at two gates of the supermarket?

You can't. A shop can only hang one signboard, which needs to meet the specific requirements of advertising. It is completely unnecessary to apply for two plaques for two doors in the supermarket. A plaque, a Chinese word, refers to a wooden board engraved with words, usually metal or wood, placed on the lintel or wall to mark the place or commemorate someone or an event.