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 mm firm s offer-make/brand- aret or similarmechanical 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 firm s offer-make/brand- aret or similar,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 firms offer-make/brand- aret or similar [ warranty period: 30 months after the date of delivery ] ]