... 4.OEM/ODM are welcomed O Ring, EPDM O Ring, Viton O Ring 1 O ring 2 Material: NBR,HNBR,PTEE,FPM,MVQ,EPDM,PTFE ... own mold center, can develop most kinds O ring of high tech requireds.7 Experience in export business:exporting ... products are include rubber widescreen,elbow,oil seal,o-ring andso on.8 According to customers' drawing, ... manufacturing all of oil seals, gaskedts,o-rings ,and so on. NBR O ring