The company assumes that it may be due to the overlap or gaps between items before passing through the metal detectors with too little. Make a powerful metal detector is not enough.
The factory assumed May be due to overlap or gap between the product before entering the metal detector with too little. Make metal detectors are not effective enough.
The factory is assumed. May be caused by overlap or gap between the goods before passing into the metal detectors are less too. The metal detector efficiency is not enough.