... , Mining Geogrid, Polyester Geogrid Manufacturers.Mine Grid 600kN/m for longwall recovery roof support system,have Russia,USA, ... of between 20 kN/m and 800 kN/m. Ultimate strengths over 1000 kN/m can be supplied for ... 60-60kN,80-80kN,100-80kN,120-120kN,200-200kN,400-400kN,600-400kN,600-600kN,800-800kN, ... 1000-1000kN/m.All Products can design to product and customized. ...