1. Thank you for your help and support, and present a banner to show your gratitude.
Thank you for your help and support, we can achieve such brilliant results, and we present a banner to show our gratitude.
Thank you for your selfless dedication and strong support, and present a banner to express your gratitude.
When we met difficulties and challenges, your unit/individual gave us support and help, and presented a banner as a token of gratitude.
Thank you for your hard work and contribution to us, and present a banner to show your gratitude.
6. The pennant is our honor and our gratitude to your organization/individual. We presented pennants as a token of our gratitude.
7. Thank you for your excellent service and work, and present a banner to show your gratitude.
In short, saying some polite words can make your thanks more sincere and warm, and at the same time show your respect and recognition for them.