First, look at advertisements. Some enterprises put up signs of "high technology", "new technology" and "new products" for their products; The second is to exaggerate the application scope and sales volume of corn harvester; The third is to exaggerate the use function of corn harvester; Fourth, use advertising words to remind users to identify false and anti-counterfeiting words and phrases to cheat users' trust.

Second, look at the logo. Corn harvesters falsely use or forge counterfeit trademarks and logos of other enterprises, which are usually found in mainframes and parts with simple structure and easy processing and manufacturing, such as rotary tiller blades, crusher hammers, screen blades, shaft blades, bolts, etc. These corn harvesters are quite different in appearance, size and paint color. When purchasing, it can be identified by comparing multiple samples, comparing with genuine products and weighing.

Third, look at the packaging. The names, packaging and decoration of other enterprises are all fake packaging. There are many fake corn harvesters and spare parts, such as connecting rods, crankshafts, valves and fuel injectors of diesel engines. Therefore, when purchasing, farmers should not only look at the packaging, but also look at the technical documents of the products and the appearance and color of the products. If necessary, they should ask for product identification certificates or take samples for testing.

Fourth, look at the certificate. Some enterprises paste product promotion licenses, production licenses, product certificates, award-winning certificates, etc. Forging award-winning products on unauthorized products to induce and deceive users. Therefore, when farmers buy corn harvesters, they must check the relevant certificates of corn harvesters and consult relevant departments before buying them if necessary.