Effect of corrosion makes bumper performance down. Especially the reinforced beams that are made out of metal, so we protect metals from corrosion by selecting the appropriate material.
The effect of erosion causing bumper Esืei with the performance. Especially the reinforcement bar made of metal. So we protect the metal from corrosion by choosing the right material.
The effect of erosion makes references to bumper, efficiency. Only by reinforcing beam which is made of metal. Therefore, we protect metals from corrosion by choosing proper material.