In addition to the iPhone 12 mini, there are three other iPhone 12 cover stickers. The three silicone cases are all black, and the models are mhl732m / A and mhlg32m / A. These two models have not appeared before. < / P > < p > in addition, due to the epidemic situation, the launch time of iPhone 12 has been pushed back and forth. At present, it is reported that the arrival time of iPhone 12 Pro Max will wait until early November, which is the same as the arrival time of iPhone X in that year. American companies begin to give up R & D: who should pay for corporate research?