The preferred Sockhole/Investigation/Geotec
Drainage and Geotech drilling in New Zealand. Blast hole drilling in New Zealand and Australia. Diamond coring under ground and surface. RC (Reverse circulation) DTH (Down the hole hammer) www.niedererdrilling.co.nz . 5/143 Cavendish Dr. Manukau City . Auckland . PO Box 98878 . Manukau City, Auckland 2241
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