B12B-XASK-1N(LF)(SN) B12B-XASK-1N-A B12B-XASK-1N-A(LF)(SN) B12B-XASS-N-A(LF)(SN) B12B-XH-2 B12B-XH-2(LF)(SN) B12BXHA B12B-XH-A B12B-XH-A (LF)(SN) B12B-XH-A LF SN