The processing steps of salted sausage casings include soaking and rinsing, scraping sausage, flooding, measuring yards, curing sausage, wrapping handles, rinsing and dipping and washing, flooding and splitting, matching yards, curing sausage and wrapping handles, and so on. The processing steps of dried pig intestine coating include soaking and rinsing, stripping grease and so on. The casing is a semi-finished product that is used to make sausage or ham after the small intestines in the pig's internal organs are processed and scraped out.