P&Q University Lesson 7, 2019-9-2 · 4. What type of crusher is most similar to a cone crusher and why? 5. What part of a crusher experiences wear and tear first? 6. What are the most common breaker tools in aggregate mining? 7. What are the two things that continue to change in crusher design, while all else has stayed the same the past decades? 8. How do high dust levels affect ...INERTIA Aggregate Equipment For Sale, 2020-7-1 · Browse our inventory of new and used INERTIA Aggregate Equipment For Sale near you at MachineryTrader.com. Models include 5066, 4048, 10x14, 36x60, and SPEC PRO II. Page 1 of 1..