How to Build a Rock Crusher Home Guides SF Gate
Jul 21, 2017· Warning Using yourtape measure and permanent marker, measure and mark the center of the iron board. Centerthe 4-inch diameterpipe on the mark. Activateyour arc welding torch, don you welder's mask, and weld the 4-inch pipe to the iron board. Let stand until cool... Pour the quick dry cement in …