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corner with the valve port , the kind of pouch type has also been used for many years , is gradually being裁汰trend has also been aging equipment , need to be updated . Paste the bag bottom bags are inferior type selected international popularity , it has the following ten characteristics of a heavy bag in the crowd : under stable degrees, low cost, put down the loading speed , easy to implement the initiative of pocket , good environmental performance , put down the bag consumption stick , improved stack invariance , enrich the ability to deceive warehouse operation , from sitting and strong , easy to identify. Since the 1980s , industrial rich countries simply to complete the transition from the bottom to the paste at the end of the seam . Since 1989, the country imported from Germany before the end of the paste paper bag consumption line has the world's advanced level of the 1980s , then ended my bag internationals paste work history . Abandoned seam change was inevitable and paste the effectiveness of pioneering utilities are also progressed . Paste can be used for bad bottom bags loaded powder, granules , tablets, wadding , dilute -like materials , such as cement, food , seeds , starch , feed, and so on. Far -year decline as packaging improvements and equipment for asphalt, ash , paints, coatings and other rare -like material , can partially replace the steel drum . The current multi-layer paper bag paste bag pioneering equipment , mostly from 

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