Reinforced casing made by a special thin paper of Acaba fiber impregnated with viscose prepared from wood pulp. The high resistance of the product, obtained through the use of high quality raw materials, guarantees a perfect holding of the casing; (Also in case of very high speed stuffing). The casing is permeable and it allows the growth of mould during the curing. Available from mm. 80 to mm. 200. Available standard sizes and on request. Clipped cuts.