Leon Van Leeuwen Corp. specializes in natural casings, animal byproducts, and machinery for processing needs. They offer a range of services including keeping clients up-to-date on market trends, providing comprehensive services, matching buyers to suppliers, navigating government regulations, and offering equipment for processing casings and animal by-products. Their product inventory includes a variety of natural casings such as sheep, lamb, hog, and sow casings, as well as meats and by-products like beef middles, horse casing, and more. Additionally, they assist in selecting the correct equipment for manufacturing needs and provide technical planning for casing rooms and by-products processing areas.