KZD-400ZF Middle - sealing,side sealing,4 side sealing high Speed Automatic Bag-making Machine KZD-400ZF Middle - sealing,side sealing,4 side sealing ... high Speed Automatic Bag-making Machine Material: various compound films. Roll folding: max width: 850mm ... ,KZD-500ZF and KZD-600ZF model bag machinery. KZD-400ZF High speed bag making machine