Kraft paper, used as packaging material. High strength. It is usually tan. The semi-bleached or fully bleached kraft pulp is light brown, cream or white. Quantitative 80~120g/m2. Crack length is generally more than 6000m. Tear strength, rupture work and dynamic strength are high. Mostly web, but also flat paper. Using kraft softwood pulp as raw material, it was beaten and made by making paper on a Fourdrinier paper machine. It can be used as cement sack paper, envelope paper, plastic sealing paper, asphalt paper, cable protective paper, insulating paper, etc.