Drill test holes by vifut

vifut | all galleries >> Luxembourg >> National Mining Museum > Drill test holes


01-Aug-2020	JCB

Mine Laangegronn

other sizes: small medium large original auto

Allan Jay		01-Aug-2020 22:20
Excellent detail here!

globalgadabout		01-Aug-2020 21:31
a comprehensive test...miners should have had a clear picture of the rock after this..

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