Tower crane Mast section, Panel style, poatin design, custom make colors Tower crane mast section S24,L46A1, L68B2,H20,HD23Panel style design, Hi-Q steels, custom make colorsWith Ladder, order 3 masts provide one platform for free.Main material of steel structure adopts high grade. Most of them are Q3458 and Q345CThe surface of entire steel structure are pretreated with shot blast technique to ...