Dear Sirs:

I am pleased confirm the order 1000 set of sewing machine by the two sides exchanged telegraph recently. Please attached our order TH112 number , packing and shipping details.

We hope you can arrange the delivery as soon as possible in order to meet our customer's urgent needs.

We have deal with the L/C in favor of your side (一某方为受益人，固定搭配)and expected to arrive within one week.

Yours sincerely, 我学的是商务英语，也学过外贸函电，希望能帮到你。其实这些多看看，记住些固定搭配。句子再怎么变也很简单的了。