How to write the invitation letter for dinner in mahjong room?

I specially picked an auspicious day to open my business, and specially invited lucky people to come over for a drink. This is auspicious wine. The more you drink it, the happier you feel. This is the wine of wealth. You put the gold ingot in your pocket. Willing to keep appointments on time. An invitation letter is an invitation letter issued when friends, relatives, celebrities and experts are invited to participate in an activity. It is a daily applied writing language commonly used in real life. This kind of letter is widely used in international communication and daily social activities.