灵活运用营销策略　大力发展商业信函南充市邮电局张林商业信函是邮政部门为社会提供传递信息服务的一种载体，其功能涵盖了邮政其它函件的特点，且更具广泛性、针对性和时效性。它依靠邮政通信网络优势，异军突起，独领函件业务的半壁江山。商业信函的商业目的决定了它具... Flexible use of marketing strategies to develop business letters Nanchong City Post Office Zhang Lin Business Letters is the postal service for the community to provide information delivery service of a carrier that covers the functions of other postal mail features and more extensive, targeted and timeliness . It relies on the advantages of postal communications network, a sudden emergence, alone collar letter business half of the country. The commercial purpose of business letters determines its ...