... . Teflon coating rubber blade 3. Heavy duty design 4. Casteels tractor wiper blade WIPER SYSTEM EXPERTKM05 HEAVY DUTY WIPER BLADE ... ( tractor wiper blade ) 1.Teflon Coating rubber blade2.Heavy duty rubber ... arm, linkage, wiper motor, washer tank, washer nozzle and washer pump for cars, truck, bus, ship, train, tractor and engineering cars under ...