Date Uploaded:
May 31st, 2009 6:46pm
Last Update:
May 31st, 2009 8:31pm
Tagged As:
beam,cross,intersect,screws,pulleys,weight,lift,heavy,cable,balance,ladder,climb,turn,industrial,machinery,crane,steel,girder,arm,nuts,bolts,wheel,rope,shadow,silhouette,outline,diagonals,squares,shapes,iron,equipment