dunsbyowl1867 Posted January 23, 2009 Share Posted January 23, 2009 Visit of Rand mining engineers - that's one hell of a Jolly! lol Link to comment Share on other sites More sharing options...
Guest Smiling-Knife Posted January 28, 2009 Share Posted January 28, 2009 Hadfields Patent Steel "An abrasion resistant heat treated austenitic manganese steel containing about 1% carbon, 13% manganese and 1.2-2.0% vanadium". Patent by Robert Hadfield 1883. Link to comment Share on other sites More sharing options...
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