OEM waterproof plug 1. NR, CR, NBR, SBR, VITON, EPDM, HNBR, SILICONE, ... , AEM, etc. 2. ISO9001 3. Prompt delivery: 1 week OEM waterproof plug MaterialNR,CR,NBR,SBR, SILICONE,VITON,EPDM, HNBR, BUNA ... ,250T, 300T and 500TSize/colorThe size and color can be designed by the customerRubber CompoundCan be UL, FDA, ROSH or REACH ...