购买选择农机产品及配件时，如何买到货真价实的产品，用以下十种简易技术方法就可识别真假。（１）有无产品合格证：正宗产品均有国家质量技术监督部门鉴定合格后，准予生产出厂的检验合格证、说明书，以指导用户使用维修，以及安装注意事项，若无则多为假冒伪劣产品。（... When buying agricultural machinery products and accessories to choose, how to buy genuine products, with the following ten simple technical methods to identify genuine and fake. (1) with or without product certification: authentic products are certified by the State Quality and Technical Supervision qualified to allow the production of the factory inspection certificate, manual, to guide the user to use the maintenance, and installation precautions, if nothing more than fake and shoddy product. (...