Mixed paper

Black & White Paper

A4 paper which has only Black ink printing, such as office document paper.

Paper Core

such as Paper core in Fabric Roll, Paper core in Tissue paper.

Mixed paper

every kinds of paper mixed, such as color paper, fanfold or continuous paper, except Copy paper, plastic coated paper.

OCC(Old corrugated carton box)

every carton box which has brown color, such as postal box.