An array of powder-metal parts. Powder metallurgy was practiced long before ancient artisans learned to melt and cast iron. Egyptians made iron tools using PM techniques back in 3,000 B.C. The ancient ...
From 1990 to 2011, the global market for injection machines nearly tripled, exploding from 33,700 
to 94,320 machines annually, with China leading the way, growing from
a 4000-machine/yr country ...