1.Please accept our thanks for the trouble you have taken.
有劳贵方，不胜感激。

2.We are obliged to thank you for your kind attention in this matter.
不胜感激贵方对此事的关照。

3.We tender you our sincere thanks for your generous treatment of us in this affair.
对贵方在此事中的慷慨之举，深表感谢。

4.Allow us to thank you for the kindness extended to us.
对贵方之盛情，不胜感谢。

5.We thank you for the special care you have given to the matter.
贵方对此悉心关照，不胜感激。

6.We should be grateful for your trial order.
如承试订货，不胜感激。

7.We should be grateful for your furnishing us details of your requirements.
如承赐示具体要求，不胜感激。

8.It will be greatly appreciated if you will kindly¹ send us your samples.
如承惠寄样品，则不胜感激。

9.We shall appreciate it very much if you will give our bid your favorable consideration.
如承优惠考虑报价，不胜感激。

10.We are greatly obliged for your bulk order just received.
收到贵方大宗订货，不胜感激。