Ọkachamara emeputa Ngwa egwu egwu

Ahụmịhe nrụpụta afọ 25

Akpa akpụkpọ ụkwụ egwu

Nkọwa dị mkpirikpi:

Ebe Mmalite: China
Aha ika: JCDRILL
Nọmba nlereanya: AX,BX,NX,HX,PX,SX
Ụdị: Ngwá Ọrụ Ndị Na-egwupụta Ihe / Ngwa
Ihe: diamond / steel
Jiri: Ngwuputa ihe, Geotechnical, Exploration
Aha: Diamond Core Drill Bit


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