1. the paper surface (Liner) is mounted on the Centre of the corrugated paper. Kraft paper, no bleach is used for applications that require high strength. In addition, they may use a paper that is made from an old tissue paper for a common task.2. corrugated roofing paper (Corrugated Medium), the use of paper made from pulp Kraft. Rice straw pulp tissue or old, depending on the strength required to bring up the roofing. Corrugated roofing paper can be divided into four categories based on the size of the Centre.
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