Seismic detonators are alluminium, they are special detonators that have been developed for seismic researchs.
They are developed for seismic dynamits, so they give effective results with seismic dynamits.
Seismic detonators are water-resistant.
Cable sizes are 1.8,2.5,3,6,9,10,25,45 meter. Cables are covered with thick PVC.