Скачать с ютуб Apna bore hole point me HQ rod hoisting aur NW casing kaise install Kiya jata he aap dekh sakte ho в хорошем качестве

Apna bore hole point me HQ rod hoisting aur NW casing kaise install Kiya jata he aap dekh sakte ho

I am diamond core Drilling operator today I will describe you about the HQ rod hoisting and how the Nw casing can be installed in the bore hole and its benefit of installing casing .Casing play an important role during drilling it prevent the loss of drilling fluid ,prevent caving etc.for any information about diamond core drilling like comment and share my utube channel ‪@ranjanmah‬