BK-AGC-1TT-R BKAGC2 BKAGC20 BK-AGC-20 BK-AGC-20-R BK-AGC-2-1/2 BK-AGC-2-10-R BK-AGC-2-1-2-R BK-AGC-2-1-4 BK-AGC-2-1-4-R