89mm step drag bits

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Changsha Sollroc Engineering Equipments Co., Ltd

City: changsha

Province/State:hunan

Country/Region:china

Tel:86-731-85551632

Contact Person:
Ms.Ling Bo View Contact Details

61 - 61 of 61

89mm step drag bits

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Eccentric Overburden ODEX90 - ODEX280 Drilling Casing Systems

...hole wide enough for the casing tube to slide down behind the drill bit assembly. 2. When the required depth is reached, rotation is reversed ... 2024-12-09 12:11:48

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