Diameter:168mm,219mm,273mm,323mm Length:from 3 m to 18m Gearbox,hanger bearing and other spare parts, Exporting package Cement screw conveyor Diameter:168mm,219mm,273mm,323mmLength:from 3 m to 18m Color: Yellow,blue,white Excellent price and quality. Gearbox,hanger bearing and other spare parts of screw conveyor