1996年对国产起重、土方机械开展的用户评价调查工作是第三次对这些机种进行用户评价调查，此次共发出调查函计9200余件，用户反馈2100余件，回收率达23％。1用户平均满意度普遍有所提高这次用户评价调查的产品质量用户平均满意度与1993年比较如下：从上述统计数字看出，1996年 The user evaluation survey conducted on domestic cranes and earth-moving machinery in 1996 was the third time a user evaluation survey was conducted on these models. More than 9,200 investigation letters were issued and more than 2,100 users returned, with a recovery rate of 23%. . 1 The average user satisfaction rate has generally improved. The average user satisfaction rate of the user evaluation survey in this user rating survey compared with 1993 is as follows: From the above statistics, it can be seen that in 1996,