英语商务函电的邀请函内容：为庆祝西华进出口公司成立,兹定于12月10日星期五晚上7点在四川饭店举行宴会,敬请光临.（请着

Dear XX,
You are kindly invited to the diner at Sichuan Restaurant at 19:00,the 10th of December,2012 for the celebration of the founding of Xihua Import and Export Co.Ltd.
(Business Attire)
R.S.V.P.
Yours,
XXXXX
（如果觉得好,请采用并评价反馈.）