Length: 1.5m, 2m, 3m, 4m, 5m, 6.1m Mining Object: Drilling Accessories and Tools Size: 2 1/2'', 2 3/4'', 3'', 3 1/2'', 4'', 4 1/2'' etc. Wall Thickness: 4mm, 6mm, 8.5mm, 10mm, 12mm etc. Export Markets: Global Trademark: Durpoten