1, Specification: about 1400 × 1400 × 1280mm. 2, column tube ф114 × 3mm standard steel handrail tube: ф32 × 2.5mm, bent into a circular welded together. 3, used in products bearing, all using the national standard deep groove ball bearings or angular contact ball bearings (axial direction under pressure). 4, both ends of the bearing installation of the national standard rubber seals and bearings built waterproof lithium grease, waterproof, dustproof properties. 5, wriggled disk rotation due damping device and Twister plate thickness shall not be less than 4mm. 6, surface treatment: degreasing - pickling - phosphate - electrostatic spraying \ skim - Shot - electrostatic spraying. 7, finishing layer on the equipment used in all outdoor weather-resistant powder. Installation: Buried.