large pattern temporary road track 22 in for swamp ground 2. Surface Pattern of Temporary nstruction Road Swamp Ground Protection Matting For Vehicle-Type A, For Pedestrian-Type B, it uld also be AA, AB, AC, BB, BC on both surface 3. nnector System of Temporary nstruction Road Swamp Ground Protection Matting Steel and Plastic nnector (2-way, []