Extension Gate Folding Gate / Sliding Gate / Retractable Gate / Industry Gate Extension GateFolding Gate / Sliding Gate / Retractable Gate / Industry GateFeatures:Material: Alloy aluminumPower: 370W/550W Moving Speed: 16-18m/minType of Guiding Track: No Track, Single Track, Double TrackSelf-lubricate technology to prolng whell usage life, and reduce noice while slidingTailor-made wearable rubber ...