BKFD 6-6-1/M18 BKFD 6-6-2 BKFD 6-PCB BKFD 6-PCB/M18 BKFD 7-086-1/S717 BKFD 7-086-2/S717 BKFD 7-7-0.5/M18 BKFD 7-7-1 BKFD 7-7-1/M18 BKFD 7-7-2