... prestress KN 937 1511 2479 3000 3955 4924 6500 Nominal hydraulic MPa 52 50 54 52 52 49 46 Tensioning of ... 385× 370 440×390 490×423 575×465 Manufacturers for Hydraulic Jacks 5 to 2000 Tons, Single & Double Acting ,Plain & Threaded ... Acting, Multi Strand /Stressing Jack, Single-Multi Strand Jack, Hydraulic Cylinder, Hydraulic Pipe Bending Machines, Pullers, Lifting Table ,Floor crane, Power Pack, Hand ...