Hi,
the following website I got out of the directory for you.
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It did have some car seats when you scroll down, but i believe It appears you are purchasing a very large quantity, not sure if you are looking to order that much.
But it is a start, you might be able to phone the company get more details... Sorry I cannot be more of a help, if i happen to pass anymore companies in the directory carrying car seat/booster seats i will be sure to post them here :)
Kristina