... , Mining Grid, Mining Geogrid, Polyester Geogrid Manufacturers.Mine Grid 600kN/m for longwall recovery roof support system,got Russia,USA,Australia ... tensile strengths of between 20 kN/m and 800 kN/m. Ultimate strengths over 1000 kN/m can be supplied for special applications ... property 10. Easy in transport and installationMine Grid Specifications:60-60kN,80-80kN,100-80kN,120-120kN,200-200kN,400-400kN ...