Dear Sir/Madam we need some Tripod Hydraulic jacks.they use for Aircraft genral use up All Tripod jacks have to equipped with a quick rising center extension  and have wheel safety nut. Lifting capacity 5000 KGFTested for 7500 KGFOperation pressure 130 KGF/SGSMMinmum Height 565 MMmaximum Height 1430 MM  DRAWING: 8AT-9907-00 in Russian Models Naser