... Haining Beyond Seals Co.,Ltd. mainly manufacture rubber parts including rubber stoppers, rubber sleeve seals(O ring, U ring, ... applicable to oil, acid, wear, pressure, flex resistance, high temperature, low temperature, resistance to chemical attack, play a good ... foreign customers.1.Description of products Open Rubber Cable Grommet Product Open Rubber Cable GrommetMaterialNR/Silicone/NBR/EPDM/SBR,etc ...