... size packing containers ,in open-type with thin-wall ,by using roll-sheet , under high-sp ... size packing containers ,in open-type with thin-wall ,by using roll-sheet , under high-speed ... step vacuum ,Two time of up-mould ,Mould Shaking Function ,Mould delay .7.Up/down Mould electric stroke adjust ,easy ... ,it could save the sheet materials .9. down mould match into cushion ,avoid crushion and improve ...