... is difficult to transport and construct, its conductivity and oversized mesh might cause a dangerous environment for miners to work in. ... Fire-retardent HockGrid® is flexible, light-weight, easy to transport and construct, which would enhance the safety ... ,TBU,ITB,TRI,China,Australia,USA,Russia Mining Safety Test. Mining Geogrid 60-60kN/m for Mineways Roof and Wall Safety Support