1.包装正规农机产品用的包装纸盒与塑料袋色彩鲜艳,而伪劣产品的包装色彩暗淡。正规的三大精密偶件外面都涂有一薄层透明防锈油,而伪劣产品却没有。 2.手感有些重要的精密农机配件加工精度较高,例如气缸套内壁、柱塞副偶件等,表面经过精细加工,用手触 1. Packaging regular agricultural machinery used in packaging cartons and plastic bags colorful, and shoddy packaging color fading products. The three regular parts of the regular are coated with a thin layer of transparent anti-rust oil, but not inferior products. 2. Feel some high precision machining precision parts of agricultural machinery higher, such as the inner wall of the cylinder liner, plunger and other occasions, the surface after fine processing, by hand touch