Trailer-mounted with tower XY-4TT trailer-mounted Spindle type core drilling rig with tower is XY-4D add trailer, tower and wire line winchTheir main features are: smail volume, light mass, double-deck agitation make it easy to products mortar, storage and deliver, The ftoups are reasonable in design, safe in quality, simple in operation and convenient maintenance.ModelSingle-deckDouble- ...