Dear Sir / Madam:
Good day ! How are you?
We hereby sincerely invite you and your company representatives to visit our booth at （地点） from April to （展会日期）.
Exhibition Center （展会中心地址）:
Booth Number（展会摊位号） :
Date（日期） : to
Thank you very much for your attention.
sincerely yours,
[name] ：邀请人名字
[title] ：邀请人公司