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big pendulum 1. Years export experience 2. Diam: 14x11x10 m 3. Safe&Interesting 4. Good quality&price outdoor playground equipment---swing big pendulum rides 1. Introduction:Swing Big pendulum is a kind of large-scale amusement facilities. The movement principle is caused by the pendulum; the trajectory is also the pendulum form. below the arm is a disc. When the arms do the pendulum swing, the ...