AN IMPERMEABLE BAG- FOR PACKAGING OF CEMENT

摘要

An impermeable bag for packaging of granular and powdery material, such as cement, comprising a laminate consisting of an overlay and underlay, a bitumen layer disposed therebetween and having a weight of 0.02 to 0.04 gms/cmSUP2/SUP, said overlay and underlay consisting of a porous fabric.