SihongSquare bottom three-dimensional packaging bag

PVC soft film packaging,Sihong square bottom packaging bag, aluminum bag window packaging bag, three...

SihongElectric insulation crinkle paper

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

SihongFood storage bag

Sihong Body moisture-proof bags (grain storage bags, aluminum-plastic composite bags, vacuum food ba...

SihongAluminum-plastic film material

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