Engineer: The efficiency of our product assembly process has declined because some of our machines have been malfunctioning often. The malfunction occurs because steel rods in some of the machines have been failing under stress. I believe that we should replace the steel rods with titaniumrods . Although steel rods are stronger than many types of rods (for example, iron rods), titanium rods are significantly stronger than these steel rods. Furthermore, when replacement costs for steel
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