96/383/2 Rock bolts, prototypes (2), test materials (2) and hollow bar samples (2), 'The Screw Bolt', 'Powerhouse Museum Selection 1995', steel/concrete, Dr Peter Gray, BHP Engineering Pty Ltd, Wollongong, 1993-1995 1993 - 1996

Gray, Peter, BHP Engineering Pty Ltd

None
We know of no events that included 96/383/2 Rock bolts, prototypes (2), test materials (2) and hollow bar samples (2), 'The Screw Bolt', 'Powerhouse Museum Selection 1995', steel/concrete, Dr Peter Gray, BHP Engineering Pty Ltd, Wollongong, 1993-1995. You can help by linking one here.