our factory specificalize in all kinds of material o rings including ffkm o rings,aflas o rings,kalrez o rings,chemraz o rings,ptfe orings,teflon o rings,encapulated o rings,fmvq o rings,pu o rings,hnbr o rings,cr o rings,o rings size from 0.5mm to 1200mm,o rings cross section size have 0.3mm,0.4mm,0.5mm,0.6mm,0.7mm,0.9mm,1mm,1.1mm,1.2mm,1.3mm,1.4mm,1.5mm,1.6mm,1.78mm,1.9mm,2mm,2.4mm,2.5mm,2.62mm and so on; our factory also manufacture all kinds of mater 详细介绍