
References
^ Joseph R. Davis (1998). Metals handbook, ASM International. Product. ISBN 9780871706546 (revised Apr 2012)^ Joseph R. Davis (1998). Metals handbook, ASM International. Wiki. ISBN 9780871706546 (revised Apr 2012)^ Metals Handbook Desk Edition 2nd Edition, CRC Press. Amazon. ISBN 9780871706546 (revised Nov 2014)
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