协助工程师与客户联系，安排保修订单发货，及时追回退件。将客户关于备件的技术问题创建入SIS系统。

Be the coordinator with engineers and customers, arrange warranty deliveries and monitor the defectives return. Creating SIS error cases for customer's technical requests of spareparts.

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现场服务：本工程特别委派一名参与本工程的工程师在保修期进行驻地售后服务，最迟4小时到达故障现场进行故障排除。

Field service: an engineer participating in this engineering is particularly appointed to conduct station after-sales service within the warranty period. At least 4 hours to arrive at the fault site.

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