Michael de villiers

South Africa

Joined: 19/09/2011

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Recent Activity

geologist21 commented on Ming's presentation "ferrous metallurgy "

97 months ago

Comment (12)

geologist21 : Please send me a copy for my metallurgical students at University of Johannesburg

97 months ago

naveenreddy50309 : please send this ppt

65 months ago

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