... PN16), BS 10 Table E4. Disc: Grey iron, Ductile iron, with or without EPDM5. Seat: Stainless steel ... and gasParts & Materials: PartsMaterialsBodyGrey iron, Ductile iron, Carbon steel, Stainless steelDisc Grey iron, Ductile iron, Carbon steel, Stainless steel, ... PTFEStemStainless steel, Brass/Bronze etc BushingPTFE"O" ringNBR, PTFELevelMalleable iron, Carbon steelContact: Ms. Annie Tel: +86-311-85520268 ...