http://pentictonfoundry.com/new/2009/07/white-iron-cyclone-used-in-tar-sands/ Full service foundry, ductile iron castings, high chrome white iron castings, gray iron castings green sand, no bake sand, lost wax, investment castings, lost foam castings, vacuum moulded castings, and welded fabrication are some of our processes hourly 1 http://wordpress.org/?v=3.0.3