... and Rib Support3. Highwall Protection4. Replace Metal Mesh,Plastic gridPerformance of HockGrid® Mine Grid (Polyester Geogrid)Among traditional methods, room- ... to transport and construct, which would enhance the safety of mining area.Technical Specification of HockGrid® Mine Grid (Polyester Geogrid) Tensile strength ( warp ... 50/50,60/60,80/80,100/80,120/120,200/200,300/300,400/400,600/400,800/800,1000/ ...