... -DN300 3) Material: a) Disc: DI, AL-Brz, stainless steel b) Body: DI, CI c) Stem: 316SS, 416SS d) Seat: EPDM ... face Std: API B16.10, API 6D, DIN 3202, ASME B 16.25, and DIN2543-2550 6) Test standard: ISO5208, API ... 6D, and BS 6755 7) Structure type: One-piece, two-piece, reduced bore, and full bore 8 ...