Material:Stationary Ring-Rotary Ring-Secondary SealCE-CA-NBR:Ceramic(CE)-Carbon(C)-NBRWC-WC-NBR:Tungsten Carbide(WC)-Tungsten Carbide(WC)-NBRWC-WC-FKM:Tungsten Carbide(WC)-Tungsten Carbide(WC)-FKMSiC-SiC-NBR:Silicon Carbide(SiC)-Silicon Carbide(SiC)-NBRCE-CA-FKM:Ceramic(CE)-Carbon(C)-FKMMaterial of Spring:304 Stainless steelPackage includes:1pc