oppertunity land

My father runs a construction company and also supplies relevant materials to the other larger companies. In order to enlarge his business, he wants to buy a set of crushing machines, such as crusherjaw crushermillimpact crusherstone crusherball millVibrating Screenraymond millVibrating Screen .The problem is which manufacturer in this line not only owns good reputation, but also is with high quality and reasonable price. After a long and comprehensive shifting and eliminating process, my father decides to make a final decision between two companies.
My father visited their website, and connected online customers consulting center respectively.
Furthermore, click their products. You know what，my father has been 50 years old and seldom use or touch computers , but now he usually is glued before the computer no less than 3 hours , it’s all because of his business. I’m totally a layman of those stone crusherRock crushercrusherhammer mill staffs
So, dose anyone have any suggestions?
Any thoughts is heartedly welcomed^O^