... 2. Fire resistance 3. Radiation resistance 4. Oil resistance silicone case for iphone4 MaterialNR,CR,NBR,SBR, SILICONE,VITON,EPDM, HNBR, BUNA, etc ... free test slabs and hardness testers can be offered for customer's testingPackageInner plastic bag/outside carton/wooden palletsPayment termsL/C, T ...