... 1.Siamesed Weigh-pack design Microcomputer scales and packaging machine unified operation ,improve the weighing and packing speed.2.High ... Power:4000W Frequency:50 or 60HZ optional FunctionCompletely automatic weighing, filling, film-pulling, bag-making, bag-punching (holing), printing, and quantity ... ,like the product features,bag-making size, packing materials and filling speed, etc.