For safe construction of steel tank as per api 650 code. single and double acting tank lifting jacking units with synchronous uniform lift model twin cylinder vertical climb capacity: 12 mt each max lifting climb 2500-3050 mm test load 18 mt each contents: 1 nos of: vertical testle 2 nos support pipes 1 nos of tresle base plate 1nos of hardened loading point, high tensile boltsnuts 1 set high pressure hydraulic hoses-1 set valves and fittings.