... others 2.Shape:Ring Gasket 3.Standard or Nonstandard:Standard 4.OEM Service:Available High Accuracy Brass Copper Bronze WashersBrass Copper Bronze ... ,ISO,ASME/ASTM,JIS,BS,non standard,etc 2) Material:Brass,copper,bronze(H59,H62,H683) High quality, high precision and ... ,DIN127,ISO,ASME/ASTM,JIS,BS,non standard,etc3) Material:Brass,copper,bronze(H59,H62,H68,etc)4) All head types ...