... 5.Chromed, ground&polished piston Features:1. 2500PSI Double acting tie-rod cylinders2. Bore size: 2"-5"3. Stroke sizes: ... 4"-48"4. Honed tubing5. Heavy duty, high stregth tie rod6. Flexible configurations With high compression resistance, less leakage, saving ... Assurance System, the USA UL.4. Products covering double acting tie rod cylinder, double acting welded cylinder, die casting, hydraulic ...