BKFD 7-PCB BKFD 8-8-0.2 BKFD 8-8-0.5/M18 BKFD 8-8-0.5/M18/CS12062 BKFD 8-8-1 BKFD 8-8-1/S717 BKFD 8-8-2 BKFD 8-8-2/M18 BKFD 8-PCB BKFDV 12-12-0.5/M18