HF180 water well drilling machine 1.max depth 180m 2.1200mm diameter 3.easy to operate 4.stable performance HF-180 water well drilling machine This machine is a trailer type machine,it has two tires with one axle under the chassis ,and it weld traction frame and towing ring ,it can be drag by one tractor.This machine work efficiency is high,drilling footage is seepdy,assist time is short, ...