Mesh mbale ndi yapadera yopangidwira kukonza mauna, omwe amagwiritsidwa ntchito limodzi ndi ma bolts ngati gawo lothandizira pansi pothandizira miyala.Amagwiritsidwa ntchito kwambiri ku Mining, Tunnel ndi Slope etc monga gawo lalikulu la ntchito zothandizira pansi.