Raw silk is soft and smooth, full in feel, good in strength and elongation, elastic, soft in luster, strong in moisture absorption, and non irritating to human body. It is a high-grade textile material, which can be used to weave various kinds of silk fabrics with different organizational structures, such as clothing, indoor supplies, handicrafts, decorations, etc. Raw silk also has high specific strength, excellent electrical insulation, good thermal insulation and the characteristics of flammable but slow burning. It has important applications in industry, national defense and medicine, such as making insulating materials, parachutes, artificial blood vessels, etc.