开首语的相关表达：
Thanks for your inquiry. I should be able to send you a quotation by tomorrow. 谢谢询价，我会在明天之内给你报价。
Thank you for your inquiry regarding our product. 谢谢对我们产品的询价。
Thank you for your interest in our product XX. 谢谢对我们产品感兴趣。
It was a pleasure to receive your inquiry about the product of our company. 很高兴收到你对我司产品的询价。
回复询盘附上资料的相关表达：
According to your inquiry, we have enclosed the quotation for your reference.
In response to your inquiry, please find attached the quotation for xx in this email.
To address your request, please find attached the detailed quotation for xx.
We are pleased to satisfy your demand with the attached quotation.
以上表达均表示：根据你的询盘/要求，我们随附报价。
随附了其他资料供客户阅览，参考：
In addition to the information above, we also attached xx.
Besides the given information, we also enclosed xx.
In order to fully answer your request, we would like to give you some further details.
There is some other information we believe may be useful to you.
You can find some relevant items below.
通常在附上报价单时，可以补充其他相关资料，如刚出货的同款产品图片/生产工艺图/大货图片/展会图片/产品功能图片/或操作视频等，加深客户印象
结束语，表明会随时进一步协助，或盼复的意愿：
We are on standby for any further support.
If you require further information, feel free to contact me.
If you have any questions or need more details, we are always ready to help.
Thank you for your time and consideration. I look forward to hearing from you soon.
We look forward to doing business with you in the future.