Answer: The car shell with iron or glass steel, should say each has advantages and disadvantages. FRP, light, thin, car can save power output, no rust and low price, can reduce the cost of the car. Compared with the hardness of iron, the impact resistance of FRP is weaker on impact. The process of iron sheet should be said to be more mature, but the weight is large, the price is high, and the material is not good enough to rust. Comprehensive analysis, FRP is more practical and high price.
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