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Durchfuehrung einer Glimmspanprobe (ohne Text)

by B.Lachner - uploaded on March 10, 2015, 9:46 am

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• algotruneman on March 10, 2015, 5:58 pm
• B.Lachner on March 14, 2015, 2:10 pm
• rejon on March 16, 2015, 9:22 am
• openclipart on March 19, 2015, 10:44 am