WebCivil Engineering Heavy Duty Ground Protection MatsMaterial : High density polyethylene (HDPE) or UHMWPE Thickness: 8mm, 10mm, 12mm, 12.7mm, 15mm, 18mm, 20mm,25mm,30mm,50mm,80mm,1 good quality plastic road mat 1220*2440mm for civil Engineering ... Double-sided pattern heavy equipment ground hdpe access sheet