Lao Sun said: "At that time, the models were mixed, and the keys in the compartment were inconsistent, so it was necessary to put 5 keys together. This is the origin of the five-key."
From the mid-1980s to the 1990s, the old-fashioned "22-type" trains were gradually on the line, the cabin environment was getting better and better, and the seats were changed from wood to soft leather, which made it more comfortable to sit on. At this time, the locks in the car were finally unified into a "master key." The same conductors as the old grandson entered the era of "a key to the car." At that time, the train had not been speeded up. More than 1,000 hours had to go for more than 20 hours. At night, the ticket was checked and the lights in the car were dim. The conductor often had a flashlight in his mouth, and the key was used to drive the door and check the passengers.
"I have been pondering over and over, looking for someone to make this 'Ding' car key, the key is a mini flashlight." The old Sun mouth with a smile, the hand caressing this "flashlight key" can no longer shine . His gizmo was once a hot item in the eyes of the flight attendants, and everyone who came to duty to ask for the key.
By the end of the 1990s, the old grandson had transferred to the air-conditioned car, and was catching up with the national railway for the first time. The train ran to the speed of 140 kilometers per hour. He also received a brand new train door key a bottle-type key.
"The environment of the air-conditioned car has been improved a lot more than before, and the car lights have gradually changed from light bulbs to tube lights and ceiling lamps. The heating in the car is no longer dependent on burning coal, but is used up. Car seats, cars The windows have been upgraded," said the old grandson.
Trainer Sun Mingjin takes the key on the train to tease the child