Report copyright - Secoroc Rock Drilling Tools DTH equipmenTnarzedziawiertnicze.pl/wp-content/uploads/2016/06/dth_L.pdf5 1 0 0 – 5 165 – 59 – 1 2 1 1 , 08 – 20 Codes for DTH bits Example: 100-5165-59-1211,08-20
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