rubber cord ring 1. High &low termperature resistant. 2. Stocks or OEM ... available. 3. Small order welcomed. FDA & UL Grade Silicone Rubber Cord Ring: 1. Materials: Silicone, NBR, ACM, NR, MVQ, ACM, FLS ... .3. Function: seal the edge of the door, container, glass, window, cabinet, etc., avoid leaking and dust; protect the machine or ...