Ribbons GORE* Série 300 make it possible to reach a great effectiveness of sealing on apparatuses and pipings out of steel of large diameter. The pint ribbon GORE* Série 600 is intended for the émailié steel equipment. There compensates for perfectly the irregularities of surface while remaining stable in dimension for asstrer an excellent "ancheity reliable and durable. (Old dteianatton; GORE-TEX' Series 300 and 600)