供电所如何优质服务:请帮我把这篇短文改的更符合商务信函

Dear Mr. Belmont,

As you are in no doubt aware, personal computers play a paramount role in the industry today. As these sophisticated systems take over more and more business functions, our dependence on them is growing dramatically. However, computers and peripheral equipment do break down. In fact, industry research indicates that the typical microcomputer system will need servicing at least twice a year. When it does, you are faced with downtime, reduced productivity, and often a large repair bill. The Echo Maintenance Agreement Program has been designed to combat the worries that often accompany extensive microcomputer usage, no matter how small or large your system may be.

Echo is qualified to service microcomputers and peripheral equipments for more than 40 manufacturers, including hundreds of product configurations. No matter what system your company has invested in, chances are that Echo can service it. Echo has been authorized by many manufacturers to provide full warranty service, thereby ending the delays in shipping your micro or peripheral equipments to a factory for repairs. In addition, we have set up nation-wide service centres to provide you with convenient, local services. Each center has an independent parts inventory as well as a link-up to our international inventory system.

You have the choice of pick-up delivery, carry-in, or on-site servicing ---- whichever is the most convenient and cost effective for you and your company’s requirements.