... .6. 1.5 mm thickness of frame, keeps you stable, strong resistance to corrosion, the reinforced structure of frame ensures a longer life ... .This wiper blade's specification, see the image below:Following are photoes of big bus wiper blade, we supply to ... , big bus, truck, ship, train, tractor and engineering vehicle under the brand name of 'XY'. We can produce wiper blades from 12" - 40 ...