supply of jacks simplex lever operation type double acting 15 tonnes capacity. a ) should be of double acting trip lowering ratchet type, b ) foot lift 70mm, c ) capacity of 15 tonnes, d ) height 560mm when closed 890mm when lifted fully 330mm ( raise ) , e ) square head 75mm as side, f ) base 280 x 160mm, g ) pitch 15mm, h ) jack should be of cast steel body socket lever with alloy steel heat treated poule forged steel necks with raised teeth , heat treated fulcrum pin, i ) easy and compact for convenient handling and transporting. [ warranty period: 30 months after the date of delivery ] => limited