Railway digital signal cable SPTYWA23 (4-61 cores, non-internal shielding non-flame retardant type); SPTYWL23 (4-61 cores, non-internal shielding non-flame retardant type); WDZC-SPTYWA23 (4-61 cores, non-internal shielding flame retardant type); WDZC-SPTYWL23 (4-61 cores, non-internal shielding flame retardant type) SPTYW03 (4-61 cores, non-internal shielding non-flame retardant type); SPTYW23 (4-61 cores, non-internal shielding non-flame retardant type); Non-flame retardant type; SPTYWA23 (4-61 core, non-internal shielding non-flame retardant type); SPTYWL23 (4-61 core, non-internal shielding non-flame retardant type); WDZC-SPTYWA23 (4-61 core, non-internal shielding flame retardant type); WDZC-SPTYWL23 (4-61 core, non-internal shielding flame retardant type); TAG：