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Apart from a handful special products like alcohol and tobacco, if something is allowed at all, the main limit is the value (€430 when traveling by air, as the site explains).
That limit only applies to personal effects, which means that importing a large quantity of anything could raise suspicion that you are really importing the goods with an intent to resell them. There is no set limits for this, it's left at the discretion of border guards as far as I know.
If you exceed the allowance, get things delivered by post or import things commercially, it is still allowed but you would be liable for VAT and customs duty (where applicable).