Pump spare part: Sliding ring and Stationary seat. Material: Carbon graphite, Ceramic, Silicon Carbide, Tungsten Carbide, PTFE submersible ... Carbide, PTFE and Kinds of rubber etc.Product Information Carbon/Ceramic Ring used in Waukesha seal (customer customized)We supply ... Universal II Pumps.Our material is silicon carbide, ceramic, carbon graphite, etc for choice.100% inspection, all products are ...