Due to the shortage of natural casings, collagen casings have emerged as a substitute. According to the statistical calculation of the National Bureau of Statistics on my country's sausage consumption, the market capacity of collagen casings in my country was about 5.8 billion meters in 2014, and about 6.6 billion meters in 2015. European countries consume 17 meters of sausage casing per capita per year, Japan consumes 13 meters per capita per year, and China has grown from not eating sausages to 4 meters per capita per year in the past 20 years. There is still a lot of room for development in the next 50 years with the improvement of economic level. From a global perspective, in addition to Europe and Japan, the demand for casings in the United States, South America, and Southeast Asian countries is also on the rise. Among the 7 billion people in the world, developed countries only account for 1 billion. The consumption of sausage casings in these developed countries has reached 13-17 meters per capita per year. There is still huge room for growth in developing countries. There will be a market of 100 billion meters per year in the world. capacity.