Feature:1. The product adopts QPQ nitriding treatment, with low surface friction and good finish.2. There will be no jams during the expansion and contraction process, and the performance is good.3. Not easy to deform, using thick cylinder body with high loadbearing capacity.4. With multiple protective double sealing rings, strong sealing and no air leakage.5. Wide range of applications, can be used to support the front cover and tailgate of automobiles, trains, doors and window, etc.Specification:Item Type: Hydraulic Support RodMaterial: Accuracy steel tubeCenter Distance (L): Approx. 500mm / 19.7inStroke (S): Approx. 205mm / 8.1inCylinder Diameter (D): Approx. 22mm / 0.9inPiston Rod Diameter (d): Approx.10mm / 0.4inInstallation Hole Diameter: Approx. 8mm / 0.3inScope of Application: Upturn support for automobile front cover and tailgate, trains, ships, doors and window, mechanical equipment, furniture, etc..Package List:1 x Hydraulic Support Rod