Dear Sirs, We are looking for supplier who can supply any types of casing for sausages as requirement below: 1: Collagen # 20, 21, 23, 24, 27, 28 2: Cellulose easy peeling # 18, 19, 21, 22, 24, 27 3: Fibrous casing# 38-40 Please kindly send us for product information Best regards, Kittisak L.