I urge you to send me a catalog of your products.
I would be grateful if you could send me a catalog of your products.
You must have a catalog of products that you can send me.
Which is the most appropriate way to request a catalog in a business letter?
I would suggest that you send a catalog of your products to your potential customers.
I would say something like this. Dear Breyer, I would like for you to send me a catalog of you mini whinnies. Thank you for your hospitality. Thank You, Lili