... 2. Fire resistance 3. Radiation resistance 4. Oil resistance cell phone case MaterialNR,CR,NBR,SBR, SILICONE,VITON,EPDM, HNBR, BUNA, etc. ... including 150T,200T,250T, 300T and 500TSize/colorThe size and color can be designed by the customerRubber CompoundCan be UL, FDA ...