... 2 20tons counterstay trolley,2 vertical press,2 frame bottom hooks,2 I-hooks,2 frame flange indenters,2 chain wheel units ... ,8 chain adjusters,1 set frame accessories,1 C-clamp,1 hydraulic pump station,1 measuring system,22 floor ... 4 Product Features:The majority of components used in frame straightening system are manufactured in special aluminum alloy,which makes the equipment lightweight ...