Qingdao Gofai Rubber can produce solid rubber Grommet/rubber gasket/rubber sealing/rubber ring/rubber seals Mateiral: NBR /EPDM/Silicone/FKM/Viton, etc It is widely used in food/industril/medical/ machine sealing, etc. Customized size/color /shape approved. If you are interested in it, please contact with: chinarubber@aliyun.com