Backhoe: The backhoe is the most common type we have ever seen. It can be used for excavation below the shutdown working surface. The basic operation methods include ditch end excavation, ditch side excavation, straight line excavation, curve excavation, excavation with a certain angle, ultra-deep trench excavation and trench slope excavation.http://www.yuhowvibratoryhamme....r.com/excavator-part
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