1. OD diameter: 0.5m-1.7m 2. Joint distance: 65*65*8, 75*75*9, 100*75*10, 247.8, 180
3. Type: L-T type, P-P type, P-T type
4. Feature: Large rigidity, bearing capacity, Good work efficiency.
5. Usage: Harbor facilities, Urban civil engineering, bridges, etc.