Carbide seal rings 1.WC-Co binder, WC-Ni binder, WC-Ni/Co alloy, WC-TiC-Ni/Cr alloy etc. 2. ... Cutstar Carbide Co., Ltd. is accomplished in manufacturing Tungsten Carbide Seal Rings, bushings, shaft sleeves and etc.Tungsten Carbide Felt Ring Seal ... or prats. Our material covers: WC-Co alloy, WC-Ni alloy, WC-Ni/Co alloy, WC-TiC-Ni/Cr alloy etc ... basic dimensions (mm) DdH10~4505~4001.5~100 felt ring seal