购买脱粒机产品时请注意有无﹃三证﹄河北省唐山市芦台农场小海北乡农民李绍福于１９９７年１０月２２日在当地农机公司购买了一台某水泵厂生产的水稻脱粒机，在使用中发现了几个问题：１、脱粒机为“三无”产品，即无质量检验合格证，无生产许可证，无推广许可证。２、未... When buying the thresher product, please pay attention to whether or not the “three cards” farmer Li Shaofu of Xiaohaibei Township, Lutai Farm, Tangshan City, Hebei Province, purchased a rice thresher produced by a pump plant at the local agricultural machinery company on October 22, 1997. Several problems were discovered during use: 1. The threshing machine was a “three-nothing” product, that is, no quality inspection certificate, no production license, and no promotion permit. 2, not...