1. Suitable for sealing big tray,cup,pneumtaic heat sealing, changeale 2. easy operation and separatecontrol 3. ... . Air pressure: 4-7kg/cm² Characters: 1. Suitable for big cup, take small space, and more functions. 2. Easy operation, separate ... and aluminum material, solid stable, never rust. 9. change model quick and suitable for any operator. 10. Pneumatic operation, save power ...