What about a dry digger, a pile driver? How much money? What's the speed?
2, how much depends on how much you need the brand of the machine.3, Shanghai Zhonglian second-hand excavator market has a large and small brand excavator, you can look at.
Shanghai Zhonglian second-hand excavator market professional solution for you:1, the dry piling machine can be refitted by excavator, but in fact it is very convenient.
You can't spend much money on your own alterations
