... Mesh HockGrid® Mine Grid (Polyester Geogrid) 1000-1000kN/m is woven by high-tenacity, multifilament polyester yarns and ... -and-pillar mining system, wire mesh or chain link material acts as roof and rib pillar support. However ... Mine Grid (Polyester Geogrid) 1000-1000kN/m Tensile strength ( warp/weft )kN/m: 30/30,40/40,50/50, ... 300,400/400,600/400,800/800,1000/1000kN/m. Mesh size: 20mm x 20mm,30mm x 30mm ...