O RING KIT/EXCAVATOR O RING KIT 1. Quality Certification: ISO9001, RoHS, REACH, UL 2. Material ... can be NBR, FKM, SI, EPDMExcavator o ring kit DIGGER MODELSIZE&PCSBOX COLORKOMATSU33SIZES/435PCSCUSTOM DESIGNHITATHI36SIZES/383PCSCUSTOM DESIGNKOBELCO34SIZES/447PCSCUSTOM DESIGNCATERPILLAR36SIZES ... rubber products include: bearing seal, valve rubber products, o ring kit, o ring, x ring, v ring, oil seal, ...