... 2: Have lots of existed o-ring molds 3: Available in various sizes and colors We are custom made Polyurethane \ Rubber \ Plastic parts ... ), NBR,FKM,FPM,VITON,SIL,ACM,EPDM,H-NBR,NR,EVA,etc. PA,TPU,PE,PP,PTFE,POM,PVC,ABS,TPR ... ' design and specification are accepted.Building a Brand New Future Various Rubber Silicone O-ring,Silicone Sealing Ring