部分型号：SY3520-1G-C6SY3520-3GD-M5SY3520-3LZD-M5SY3520-4GD-C6SY3520-4GD-M5SY3520-4LZD-M5SY3520-5G-M5SY3520-5GD-***SY3520-5GD-M5SY3520-5GD-M5-QSY3520-5LOUDSY3520-5LZD-***SY3520-5LZD-C6SY3520-5LZD-M5SY3520-5MZ-M5SY3520-6GD-M5SY3520-6GD-M5-QSY3520-6LZD-M5SY3520-6LZD-M5QSY3540-5FU)