Clear O Ring 1500 size for choose or custom make Small MOQ Fast ... , Flash device, molding equpment etc.O ring moldover 2000 setsWorker 150-200Staff25QC5Main productso rings, v-ring,gaskets,,washer, grommet, oil seal,custom ... , Neoprene(CR),Butyl(IIR),NR,PU etc.Material PerformanceRebound resistance, Tear Resistance, Abrasion Resistance, Impact Strength Resistance, Gas Impermeability Resistance, Oxygen ...