To provide a regieco bag pursuing convenience, labor saving and ecology by providing a vertical welding partition inside a bag. SOLUTION: One or a plurality of vertical welding partition lines 2 are provided at the central portion of a bag interior 1 in a plastic bag with a gusseted gusset made of polyethylene and a rectangular plastic bag, and either one is used separately We created a space to enable bagging of large and small products and various kinds, pursuing convenience and frugality of the bag body. BACKGROUND OF THE INVENTION
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