Color classification: 10-25 plug, 10-25 socket, 10-25 plug + socket, 35-50 plug type C, 35-50 socket type C, 35-50 plug + socket type C, 35-50 plug type B, 35-50 socket type B, 50-70 plug, 50-70 socket, 50-70 plug + socket
(1) If there is only a plug, you can look at the model number on the rubber sleeve. If there is only a socket, measure the diameter of the socket with a ruler. (3) Determine the model and buy it directly!!