“三包”同样是一柄双刃剑,对于用户来讲,更不要认为实施“三包”就能让你退换设备随心所欲。消费者倘若要退换设备,则需要独立第三方检测机构,对争议涉及的技术问题进行专业的检测和判断。其实任何一种产品都不可能尽善尽美,存在一定的质量问题属于正常现象,进行退货换货也无可厚非,关键是出现质量纠纷时如何区分责任。有业内专家指出,为了尽快解决同样困扰工程机械行业的质量纠纷,国家相关部门应 “Three Guarantees ” is also a double-edged sword, for users, but do not think that the implementation of “Three Guarantees ” will allow you to return the device arbitrary. If consumers want to return the equipment, you need an independent third-party testing agencies, technical issues involved in the controversial professional testing and judgments. In fact, any kind of product can not be perfect, there is a certain quality problem is normal, the return of replacement is understandable, the key is how to distinguish between the quality of disputes. Some industry experts pointed out that in order to solve the same troubled construction machinery industry as soon as possible the quality of disputes, the relevant state departments should