We offer differnet size of screw blades, suitable for: Screw conveyor, combine harvester, grain machinery, mine machinery, mixers etc. The materials of blades can be carbon steel or stainless steel. Outer diamters: 90---600mm. Inner diameter: 25--350mm. Thickness: 3.5mm, 5.0mm, 8mm. Hardness of outer rim: HB240.
