Expressions for Business Letters

Request
We got your address from …
Your advertisement has come to our attention.
We were told that you produce …
We intend to buy … / We are considering the purchase of …
We have a steady demand for …
We would like to know more about …
Could you please send us information about …?
Please send us your catalogue/catalog.
Offer
We are pleased to hear that you are interested in our products.
We hereby send you our offer.
Enclosed please find our offer. / Enclosed you will find our offer.
We are pleased to make the following offer:
We assure you that your order will be dealt with promptly.
Please let us know your requirements as soon as possible.
We look forward to receiving your order.
Order
Enclosed please find our order. / Our order is enclosed.
We would like to place the following order:
We herewith order the following items:
We require the goods urgently.
We would be grateful if you could deliver as soon as possible.
Please let us know when we can expect the delivery.