our factory specificalize in all kinds of material o rings including o rings size from 0.5mm to 1500mm;cross size have 0.5mm,0.8mm,1mm,1.1mm,1.2mm,1.3mm,1.4mm,1.5mm,1.6mm,1.78mm

1.9mm,2mm,2.1mm,2.4mm,2.5mm,2.62mm,3mm,3.5mm,3.52mm,,4mm;

4.5mm,5mm,5.33mm,5.5mm,6mm.6.5mm,6.99mm,7mm,7.5mm,8mm.8.5mm,9mm,10mm and so on;our o rings material have FFKM,AFLAS O RINGS,kalrez o rings,fmvq o rings,cr o rings,Tap o rings,teflon o rings,viton,mvq o rings,nbr,cr o rings,silicone,epdm o rings,cr o rings,tpu o rings,,