Rotary Technologies Corporation News and Testimonials

Why Compacted Graphite Iron?
(by Dave Woodruff, Makino Machine Tools - December 18, 2007)
In 1949, a now well-known material called ductile iron was patented. At the same time, a lesser-known material called Compacted Graphite Iron (CGI) was also patented, though it was just considered a curiosity at the time. ...