1.O Ring, Pin Bush, SPGW, Ring Wear, Seal Oil, 2.Excavator and Crane Repair Seal Kit 3.Life of the mold: can ... be 50,000times, Description of High Tensile Strength Hydraulic Seal Kit:1. Materials: can be NR, HNBR, MVQ, ACM, FLS ... , CR, SBR, SI, BR, IR, EPDM, IIR, PU,E/A, ECO, CSM, VITON, FKM, FPM, etc. 2. Characteristics: good ...