... techniques, and using imported ballonet.2.The shaft is casted by aluminum alloy, shaft body plated by ... be unloaded.4.Performance and advantages: in practical applications, it is convenient to operate, quickly, no damage ... for rolls etc.Use: It is widely used in printing, cutting, coating, compounding and other machineries ... – Ø158mm8 "Ø200mmØ205 – Ø208mm machine parts key type air shaft