HFD31/12-L1SR HFD31/12-L2 HFD31/12-L2(257) HFD31/12-L2S HFD31/12-L2S(257) HFD31/12-L2SR HFD31/12-S HFD31/12-S(257) HFD31/12-S(258) HFD31/12-SR