RR151 and RR181 Piston ring 21002
RR151 and RR181 Parts List:
Thrust bearing，Part No： 32106
Plain bearing bush，Part No： 34101
Plain bearing bush，Part No：32102
Piston ring，Part No：32108
Piston ring，Part No：21002
O-ring gasket，Part No：32222
O-ring gasket，Part No：42003
Self locking nut resp，Part No：21003
Cup spring，Part No：21004
Hex.-headed screw，Part No：51004
Locking plate，Part No：51003
Socket screw，Part No：32110/32111
