商务信最重要的是分清类别和语气，你陈述的这种情况比较偏向于咨询函（向对方要求信息）。但是我不明白什么是起重业（？），我理解为起重机械制造吧。Dear Sirs：I am planning to attend a meeting with a lifting appliances corporation next week ,with whom an establishment of business relations would considerably increase our firm's turnover.We are supposed to give a 30-min product introduction, and shall...
