Ok. I hope for a pleasant cooperation between us.

好的。真诚希望彼此合作愉快。

youdao

So, hope to become your business partner and try our best to make a pleasant cooperation.

希望成为您的合作伙伴，并尽力使合作愉快。

youdao

If we have a pleasant cooperation this time, I promise to make your company our long-term supplier.

如果这次大家合作愉快，我保证指定你公司为长期供货商。

youdao