FKN50SJR-52-0R1 FKN50SJR-52-0R12 FKN50SJR-52-0R15 FKN50SJR-52-0R18 FKN50SJR-52-0R22 FKN50SJR-52-0R27 FKN50SJR-52-0R33 FKN50SJR-52-0R39 FKN50SJR-52-0R47 FKN50SJR-52-0R56