The standard delivery in the futures market is grade 2 rice. . . You take better 1 grade rice for delivery. . The exchange will give you a ton of water, 50 yuan. . I'll give you 50 yuan more per ton, 3 meters, and it doesn't matter if the photos are even worse than the requirements. I'll give you a discount of 50 yuan, that is, 50 yuan, per ton. . Do you understand?