Dear Sir (or Mr. XXX),
Being specialized in the trade of cloths and relative goods, we express our desire to trade with you in this line.
On the basis of equality, mutual benefit and the exchange of needed goods We are glad to invite you to interview our company.
Please inform us of your itinerary so as to facilitate our arrangements in advance.
Please feel free to ask any question if there is anything you are particularly interested in.
Looking forward to your reply
Faithfully,
一般的客户来看厂不需要邀请函,这种情况下很多都是骗子,尤其是尼日利亚等非洲国家的。小心为上!