Standard : A270, DIN EN 10357 according to series A & D (supersedes DIN 11850 series 2)

Material : Stainless Steel 304 (1.4301) or 304L (1.4307)  & 316L (1.4404)  (annealed, not annealed or bright annealed)

Internal Finishing : Polished with Ra < 0.8μm

External Finishing : Brushed with Ra < 1.0μm

Size : 0.25” ~ 4”, DN10 ~ DN350