Portable Dfq-200c Truck Mounted Used Water Drilling Machine

I. Some Features of Portable DFQ-200C Truck Mounted Used Water Drilling Machine
1. It is applied to different drilling conditions, like soil , gravel, soft rocks, hard rocks,etc.
2. Fully hydraulic control, mounted on truck, with easy operation and transportation.
3. Four hydraulic standing legs for stable working.
4. Automatic loading and unloading drill rods, automatic clearing wells.
5. Using Air compressor , mud pump, DTH hammer drilling tools, highly efficient for hard rocks.
6. Movebase:  Six-wheel type, Crawler type and Truck mounted type for your Choice.

II.Technical Parameters of Portable DFQ-200C Truck Mounted Used Water Drilling Machine

Dear friend, do you know how to get a suitable machine ? If not, pls kindly check following things, and send the information 
1. Functions :  for water well, coring , soil testing, pile foundation, geological project or others ?
2. Stratum :  all hard rocks or mixed with soil , sand, gravel and soft rocks ?
3. Drill depth: 50m,100m, 150m, 200m, 300m, 400m or ?
4. Hole dia. :  3'', 4'' , 5'', 6'', 7'', 8'' or ?