Helvetia-Rosemont Mining District, Pima County, Arizona, … A Cu-Pb-Zn-Ag-Au-W-Mo-limestone-marble mining area located in T.17-18S., R.15-16E., in the northern and central Santa Rita Mountains, north-central part of the Patagonia quadrangle, in the eastern part of Pima County, comprising a northeast-southwest area about 12 miles long and 7 miles …
Nmill 1900 - NILES-SIMMONS. Z‑Axis with milling spindle unit in a weightsaving robust sandwich construction. NC rotary table with a dynamic direct drive with hydraulic clamping at desired angle, rotary transmission for additional functions, optional speed range up to 250 rpm with automatic alignment function.