supply of mechanical track jack capacity 15 ton as per following specification . capacity 15 ton closed height 558 mm lift 304mm base size 160x280mm head size 76 sq mmmechanical track jack capacity 15 ton as per following specification . capacity 15 ton closed height 558 mm lift 304mm base size 160x280mm head size 76 sq mm,mechanical track jack capacity 15 ton as per following specification . capacity 15 ton cl osed height 558 mm lift 304mm base size 160x280mm head size 76 sq mm [ warranty period: 30 month s after the date of delivery ] ] , mechanical track jack capacity 15 ton as per following specification . capacity 15 ton cl osed height 558 mm lift 304mm base size 160x280mm head size 76 sq mm [ warranty period: 30 month s after the date of delivery ] ]