You can add an another type seat.

The A330-300's and some A330-200's don't have the NEV3 seats which you 'll find on the B777-300ER but an other type of seat. BE Aerospace I believe.

Here it is:


A330-303 PH-AKA




A330-203 PH-AOM

There are more pictures of it on the web but they are hard to find.

I've to admit the seat really does look like the NEV 3's but they are a bit different. Garuda, EgyptAir, Qatar and a bunch of other airlines use this type of business class seat.

It's a bit confusing but I hope I've made it a bit more clearer.