Compressed air is vital in nearly all aspects of metal products manufacturing. Machining, fabricating, and metal casting operations use air in many ways. Steady pressure and clean, dry air are critical for all CNC systems, from laser and plasma cutting to precision multi-axis grinding. KINGS STONE CALCIUM CARBONATE ENTERPRISES CORP. Country San Simon ... Agriculture, Construction, and Mining Machinery Manufacturing. Alumina and Aluminum Production and Processing. Animal Food Manufacturing. ... Commercial and Service Industry Machinery Manufacturing. Communications Equipment Manufacturing.