supply of hydraulic cylinder , heavy duty hydraulic cylinder 2h series, style bb clevis mounting to 4 inch bore , 12 inch stroke , 1-3/4 inch piston rod. note: 1) piston & gland seal kits shall be of viton mat erial. 2) firm should furnish inspection/test certificate along with the supply. 3) cylinder b ore & piston rod should be hard chrome plated. 4) two sets of seal kits with each cylinder should accompany the supply. 5) cylinder should be guaranteed for minimum period of 18 m onths from the date of supply or 12 months from the date of fitment, whichever is earlier. makes: m/s parker/bhavana fluid power/dowin hydraulics/island hydraulics or similar. ]