... brand BZC200CA Truck mounted, rotary type IAO9001:2008 200M water well drilling machine BINZA brandBZC200CA200M depth, diameter:500MMTruck mounted, rotary typeDetailed ... larger torque of the turntable, it is mainly used for water well, construction, national defense building foundation, geological exploration, ... please send us email, thanks!Best regards,YoursSandy 200M water well drilling machine