changduSquare bottom three-dimensional packaging bag

PVC soft film packaging,changdu square bottom packaging bag, aluminum bag window packaging bag, thre...

changduElectric insulation crinkle paper

changdu Insulating Wrinkle Paper, also known as crumpled paper,changdu refers to a type of processed...

changduFood storage bag

changdu Body moisture-proof bags (grain storage bags, aluminum-plastic composite bags, vacuum food b...

changduAluminum-plastic film material

The changdu moisture-proof effect of aluminum-plastic film material is 80 times that of ordinary pol...