Custom Silicone Rubber Seals. 1.Size:according to customers design/drawing/sample. 2.Material:silicone,NBR,NR,EPDM,VITON,PU. Custom ... rubber parts and plastic parts.Any customers design are welcome. Just send us your design/drawing/sample,we can create it according to ... , CR, IIR and so on.2. Size: According to your drawing or sample.3. Color: Black, white, Transparent, gray, green, yellow ...