Semi-automatic dozen charter principle and characteristics: 1. strapping speed , each of the strapping only 2 seconds , Instant heating , five seconds , can make the heating slice work , entered the best packing condition; 2. 1 minute of inner not operation , automatic stop , enter standby , save ,electricity; 3. design improvement , elaborate manufacture , use scope , no matter size package , need not adjust machine can pack ; 4. the machine of mechanical structure , part adopts imported spare parts and stable and reliable , and after blade adustment is convenient wait for a characteristic ; 5. and the charter mesa is higher ,operating play user -friend;ly conbeniently , suitable for packing lighter goods;