B20B-KRWHK-C(LF)(SN) B20B-KRWHK-F1(LF)(SN) B20B-KRWHK-F1-1(LF)(SN) B20B-KRWHK-F1-1D(LF)(SN) B20B-KRWKK-F1-1D(LF)(SN) B20B-PADSS B20B-PADSS(LF)(SN) B20B-PADSS-1 B20B-PADSS-1(LF)(SN) B20B-PADSS-1F