Orion Drilling Co. LLC workers measure pipe before changing a drilling bit on Orion's Altair natural gas rig in Edna, Texas, U.S., on Tuesday, July...
Floor hand Oscar Rodriguez, left, and motor man Alex Espinoza position pipe as it pulled before changing a drilling bit on Orion Drilling Co. LLC's...
Frantisek Kosulic, moves a drill bit to the driling platform for Moravske Naftove Doly a.s in Zarosice, Czech Republic, on Wednesday, Jan. 9, 2008....
close up of metal drill bits in a workshop sorted in size order and covered in dust. - 鑽頭 鑽配件 個照片及圖片檔
Young men working at the workshops of British Railways' Locomotive Training School at Derby. A scene from the British Transport Films production...1950-1959, 歸檔, 教育
