O-ring / seal ring 1) Size:1.8*105mm 2) Material:NBR,NR,SBR,BR,IIR,EPDM,CR, ... 4) OEM is welcome. Brand:LEECOMName:1.8*105mm O-ring1) Size:1.8*105mm2) Material:NBR,NR,SBR,BR,IIR,EPDM ... and advanced productive technology to complete our rubber production. 1.8*105mm O-ring