Vacuum hardened manganese steel knife,longer life,finer and finer hardness
Continuous shredded paper for 10 minutes,4.5 m/min shredded paper speed,17 pieces of single shredded paper,2200 pieces of broken pieces in 10 minutes
34L large capacity,drum,power failure,full chip alarm
Fine and silent,noise-reducing design 63dB noise,keep quiet office environment