... is divided into: PE flat bag, zipper bag, clip chain bag, envelopes, bags, punching bag, arm in arm bag, zipper bag, PE membrane. 1, PE ... clip chain (the clip chain is separate out) made bag, bag both sides generally have relatively wide indentation, and the self ... is divided into: PE flat bag, zipper bag, clip chain bag, envelopes, bags, punching bag, arm in arm bag, zipper bag, PE membrane. 1, PE ...