[ China Agricultural Machinery Industry News ] Plant protection drones have developed rapidly in recent years, benefiting from the promotion of agricultural machinery and the development of modern agriculture. However, the purchase price of plant protection drones is 4,000 to 50,000. This is a big
The air grading with air as the medium is also called dry grading. The treated materials must be dry, the moisture content is less than 5~6%, and the effect of wind grading is generally worse than the hydraulic grading, but the product is dry, not Dehydration is economical in some cases. Some can n