Hillhead 2012
19 - 21 June 2012
International live demonstration show for the quarrying, recycling and heavy construction industries at Hillhead Quarry, Buxton, UK.
effective value
The root-mean-square value of an alternating current or voltage.
19 - 21 June 2012
International live demonstration show for the quarrying, recycling and heavy construction industries at Hillhead Quarry, Buxton, UK.
The root-mean-square value of an alternating current or voltage.
The monthly journal for the quarry products industry.