... speed 1000pages per min.Specification:1. Four books stitching one time, 8 stitches, paper width 920mma. ... :Add one set sheet feeder system2. Five books stitching one time, 10 stitches, paper width 1100mma. Including ... 20000KgOptional:Add one set sheet feeder system3. Two books stitching one time, 4 stitches, paper width 500mmFeature:a ... lowerc. less cost, lower waste Fully automatic Exercise Book Machine