Cold pressed linseed oil is an oil obtained by pressing linseed. Flaxseed is a traditional oil crop in China. Linseed oil is only in the mountains and no one knows it. People know its value. Linseed oil is the oil obtained by pressing the seeds of the oil crop flax. Flaxseed oil contains linoleic acid, a type of omega-6 fatty acid, but unlike most vegetable oils, the dominant fatty acid in linseed oil is another essential fatty acid, alpha-linolenic acid (ALA). ), an omega-3 fatty acid.