... setting pin, ratchet pawl, rifle nut, rifle bar, piston, cylinder, guide sleeve, muffle, crowned spring, hoop, front head, ... locking nut, spring ring, side bolt, control valve, water tube, air tube, small seal sleeve, back head, side bolt nut, retaining ... , rubber handle, seal ring, water tube sleeve, rubber pad, air tube pad, O-ring, air connection tube, pressure regulation valve, water connection ...