zhejiang success rubber factory specificalize in all kinds of material o ring diameter size from 1mm to 2000mm,o rings cross section size have 0.4mm,0.5mm,0.6mm,0.7mm,0.8mm,0.9mm,1mm,1.2mm,1.3mm,1.4mm,1.5mm,1.78mm,1.9mm,2mm,2.4mm,2.5mm,2.62mm,3mm,3.5mm,3.53mm,4mm,4.5mm,5mm,5.3mm,5.33mm,5.7mm,6mm,6.5mm,6.9mm,7mm,7.5mm,8mm,8.4mm,9mm,9.5mm,10mm,11mm,12mm,µČ