The lifting aluminum wedding line arranging in the figure is a full set of litta tower parts for gentleman truss or truss lift tower hanging line arrays.
The elevator aluminum system outdoor linear truss is a gentleman truss in the figure, installed on the stage truss system, two parts sharing a column, which use a crane to rise.
Hanger Aluminum Outdoor Line Array Truss in the picture is a typical goal post truss system specially installed for hang line array large sound system.
Lift Aluminum Outdoor Line Array Truss in the picture is a gentry truss attached to the stage truss system, two parts share one column, and they use hoists to lift.