... O Ring kits 1. Quality Certification: ISO9001, RoHS, REACH, UL 2. Material: NBR/VITON/SI/EPDM 3. TYPE: METRIC /IMPERIAL/ EPDM rubber O RING ... can be NBR, FKM, SI, EPDMExcavator o ring kit DIGGER MODELSIZE&PCSBOX COLORKOMATSU33SIZES/435PCSCUSTOM DESIGNHITATHI36SIZES/383PCSCUSTOM ... seal, valve rubber products, o ring kit, o ring, x ring, v ring, oil seal, wiper seal, u ring, rod seal, piston seal ...