Our Own Brand(TM) bags have reinforced side-welded zippers and side-seal construction. Minigrip® premium-brand bags are suited for heavier items. They're side-seal constructed and designed with a reinforced side-welded zipper.
Associated Bag (Milwaukee, WI) offers three types of PE zipper bags in sizes from 2" x 2" to 13" x 18". Economy bags are side-seal constructed with a single-track zipper.
Aug 31st, 1996