Yellow semitransparent liquid flax forced by pressing flax seeds by indigenous method or oil press can be divided into oil flax, fiber flax and dual-purpose flax according to different uses, belonging to flax family and panicum miliaceum. Flaxseed is oblate, dark brown and shiny, and can be used to extract oil. Linseed oil can be used for cooking and frying food, and also for making paint, ink and soap. Flaxseed also contains 6%- 10% flaxseed gum. Flaxseed gum is a pectin substance mainly containing polysaccharide, which contains 65,438+02% protein, 65,438+07% pectin acid, starch, minerals and so on. Can be used as food additive, cosmetic raw material, pharmaceutical raw material, etc. After extracting linseed gum, not only the oil yield of linseed is high, but also the quality of linseed oil has changed obviously. Oil residue is also a high-quality feed and fertilizer. Flaxseed stem bark fiber is thin and tough, wear-resistant, not easy to be corroded by water, and can be used for spinning and making fishing gear, hemp rope, sacks and so on.