... such as PEEK,PTFE, POM, PVC, PPS, PP, PE, PE-UHMW, ABS, MC NYLON, OILON,the highest quality materials in stock ... manufacture technology and methods satisfies customers request.4.The performances of the PEEK valve seat as following:1)Mechanical performance: Creep ... be used in the condition that material must have low coefficient of friction and wear resistance.3)Flammability: Self-extinguishing, 94v-1( ...