lifting columns 1,High quality 2,Efficient testing 3,Excellent delivery ... bearings that run quieter. 3, reasonable structure, beautiful modeling. Easy to use, flexible, reliable, durable and have anti-theft, dust protection ... actuators.4)Standard stroke: 500-635mm5)Special trip designed according to your requirements.6)Thrust: 1000N7)Rated load speed: 48mm / s ...