Jumbo Underground Tunnel Drilling Rig Single Face Boom Jumbo drilling rig machine is a powerful, highly mechanized excavation system designed for constructing extensive subterranean tunnels with ...더 보기
방문자의 메시지메시지를 남기세요
아직 공개된 의견은 없습니다.
Underground Mining Drill Rig Tunnel Hard Rock Borehole Drilling Equipment Jumbo Drilling Rig