Dear XXX,
We are honored to have had your visit. May we ask what impressions you have of our company?
We have previously undertaken fixture inspection work for your company, and to our knowledge, your employees have given us some good reviews. We are currently helping your company with a new project, and I believe we can out-perform the last one.
We are also constantly improving our quality and reducing costs. We sincerely hope to maintain a long-term cooperative partnership with your company.
Needless to say, we would be even more delighted if we are able to establish a cooperative partnership with your company's headquarters.
I look forward to your reply. Thank you.
Yours faithfully,
XXX