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plastic bag has joint and several liability and manufacturing process of such a bag
plastic bag has joint and several liability and manufacturing process of such a bag
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机译:塑料袋具有连带责任和这种袋的制造工艺
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摘要
A plastic film web is perforated and sealed at the open end of a bag to provide an integral tear strip portion of the bag material which can later be either wholly or partially detached for use as a closure tie.
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