high quality paper-plastic composite bag 1.kraft-plastic bag 2 loading weight 10-100Kg 3 density 32*32-48*48 4 length: 1110m high quality Kraft ... -plastic Composite Bag 1- It is made of the kraft paper ... materials, explosives, feed, salt, minerals etc. Paper-plastic composite bag (Complex bag of kraft-plastic) is made of kraft paper, coating, and ...