Hillhead 2012
19 - 21 June 2012
International live demonstration show for the quarrying, recycling and heavy construction industries at Hillhead Quarry, Buxton, UK.
column charge
[img_assist|nid=11831|title=|desc=|link=none|align=right|width=320|height=334]A continuous charge in a quarry blasthole.
The monthly journal for the quarry products industry.