25/11/2017 2:07:00 25/11/2017 2:07:00 Ghani Rozaqi

5 Ghani Rozaqi 25/11/2017 2:07:00 churn drilling; percussion drilling churn drilling; percussion drilling

churn drilling; percussion drilling

Apa itu churn drilling; percussion drilling?

churn drilling; percussion drilling adalah pengeboran tumbuk

sumber: Glosarium – Pusat Bahasa Departmen Pendidikan Nasional Republik Indonesia