韓國SANG-A相阿3A旋轉接頭，低轉速旋轉接頭，高轉速旋轉接頭。
NRC04M5 SANG-ANRC04M6 NRC0401 NRC06M5 NRC06M6
NRC0601 NRC0602 NRC0801 NRC0802 NRC0803 NRC1003 NRC1004 NRC1203 SANWO NRC1204 NRC04G01
NRC06G01 NRC08G01 NRC08G02 NRC08G03 NRC10G03 NRC10G04 NRC12G03
NRC12G04 NRL04M5 NRL04M6
NRL0401 NRL06M5 DANHI NRL06M6 NRL0601 NRL0602 NRL0801 NRL0802 NRL0803 NRL1003
NRL1004 NRL1203 NRL1204
NRL04G01 NRL06G01 NRL06G02 NRL08G01 NRL08G02 NRL08G03 NRL10G03 SANG-A NRL10G04
NRL12G03 NRL12G04 NHRC04M5 NHRC04M6 SANWO NHRC0401
NHRC0601 NHRC0602 NHRC0801 NHRC0802 NHRC1003 NHRC1004 NHRC1203
NHRC1204 NHRC04G01
NHRC06G01 DANHI NHRC06G02 NHRC08G01 NHRC08G02 NHRC08G03 NHRC10G03 NHRC10G04
NHRC12G03 NHRC12G04 NHRL04M5 NHRL04M6 NHRL0401
SANG-A NHRL0601 NHRL0602 NHRL0801 NHRL0802 NHRL1003 NHRL1004 NHRL1203
NHRL1204 NHRL04G01
NHRL06G01 NHRL06G02 NHRL08G01 SANWO NHRL08G02 NHRL10G03 NHRL10G04
DANHI NHRL12G03 NHRL12G04 NHRF01-01 NHRF01-02 NHRF02-01 NHRF02-02
NHRF02-03 NHRF03-04 NHRF04-03 NHRF04-04 NHRFG01-G01 NHRFG01-G02 NHRFG02-G01
SANG-A NHRFG02-G02
NHRFG03-G03 NHRFG03-G04 SANWO NHRFG04-G03 NHRFG04-G04 NHRS01-01 NHRS01-02
NHRS02-01 NHRS02-02 NHRS03-03 NHRS03-04 NHRS04-03
NHRS04-04 NHRSG01-G01 DANHI NHRSG01-G02 NHRSG02-G01 NHRSG02-G02
NHRSG03-G03 NHRSG03-G04
NHRSG04-G03 NHRSG04-G04