Colored Silicone O Rings: 1,Shipment: as customized 2,MOQ:10000pcs 3,Material: silicone 4,OEM & ODM warmly welcomed Silicone Rubber O Ring:1)High and low temperature ... resistance,2)abrasion resistance, 3)UV-resistance,3)Ozone resistance Silicone Rubber O Ring:1)Material: SILICON, NBR, SBR,NR,EPDM,IIR,EP,CR ...