Specifications: With gap in the middle Different sizes can be grouped: 3×8, 10, 12, 14, 16, 18, 20, 22, 24m. Max. capacity: 60t or 80t More units can be put into a 20’ or 40’ container, greatly saving transportation cost. In one 20’ container, 2.5 units of 3x18m can be loaded. In one 40’ container, 5 units of 18m can be loaded.