Dear xx，
Good day.
This is xx from xx .We are the supplier of xx. Glad to contact with you.
Enclosed is purchse order for your company, please kindly check it.
Any questions please kindly contact with me.
Thanks & Best Regards,
XX
一般注意事项：
1.
不要做缩写。比如doesn't要写成does not
2.
文章开门见山，不用寒暄太多。
Dear Mr./Ms, Mr. John Green, our General Manager,
will be in Paris from June 2 to 7 and would like to come and see you, say, on June 3 at 2.00 p.m.
about the opening of a sample room there.Please let us know if the time is convenient for you.
If not, what time you would suggest. Yours faithfully。
