Dome PDC & Conical PDC mining / Awọn ohun elo Imọ-ẹrọ

Gẹgẹbi o han ni aworan apa ọtun isalẹ, Dome PDC ati Carbide ti wa ni inlaid ni kanna percussion kanna. Lẹhin idanwo, awọn ifisilẹ carbide ti wọ.