Standard or Nonstandard: Standard Certification: NONE Material: Silicon Shape: Flat Gasket Model Number: dn8/10/15/20/25/32/40 Type:GasketMaterial:SiliconWorking Tempearature:0-80 CSize:DN 8/10/15/20/25DN8:5x11x3mmDN10:8x16x3mmDN15:10x19x3mmDN20:15x24x3mmDN25:19x30x3mmDN32:26x40x3mmDN40:32x46x3mm