What are the materials available for pressfitting systems? Which diameters are available?, The expert answershttps://www.racmet.com/en-ww/what-are-the-materials-available-for-pressfitting-systems-which-diameters-are-available.aspxThe pressfitting systems manufactured in Italy are divided in: inoxPRES: stainless steel 316L; available from 15 to 168mm. steelPRES: carbon steel E95; available from 12 to 108mm. aesPRES: copper/brass; available from 12 to 54mm marinePRES: cupronickel 90/10; available from 15 to 108mm.