the surface of W968 is larger than that of dragon five, and the thickness of W968 is thicker than that of Buron 5. From this, it can be shown that W968 is more difficult to penetrate than that of dragon five. Double Happiness dragon five can be regarded as a basic model, with a slightly thinner surface material and a slightly thicker core, and the material selection is not rigorous enough. The special W968 can be described as the exclusive version of dragon five. After all, it is a Chinese-made equipment, which is not only strictly controlled in material selection and technology, but also the carbon fiber in Huang Fang is thicker than the market version of dragon five.