Many things, in modern China, are different from the same things in the West.  China, basically, evolved on its own for much of the last century because there was no technological exchange with the rest of the world, except, perhaps, with the former U.S.S.R., which also isolated itself from the rest of the world, during that same period (more or less).  Thus, instead of clothing washers with the standard, tall spiral agitators we have, in the West, Chinese washing machines have a sort of propeller in the bottom of the tank.  Light bulbs, instead of incandescent, are florescent bulbs made by twisting the florescent tubing into small spirals the size of our globe-shaped bulbs.  There are a lot of vehicles, in China, like I have never seen before.  I do like the air conditioners, which have the compressor and radiator as a separate part mounted outside and the cooling part inside the house, which is common, in the West, only for central air conditioning units.

Maybe I am out of touch with doorstops, and maybe they do have this type, in the West, but I have never seen it.  I am familiar with the rubber wedges, and when my parents bought a new house, in the late 1950's, it had wall-mounted stops made of a tightly coiled spring.  I am also familiar with the metal ones that have an eye and L-hook, so that you can hook the door to the stop.  However, the ones in China are made of a metal wall-mounted stop, much the same as we had, but on the end is a magnet, and on the door, to mate with the male wall-mounted magnetic piece, there is a circular metal piece with a spring-mounted central disk.  Thus, when you push a door open, the door-piece absorbs some of the shock and catches the wall-piece, magnetically, and stays in place.  I just love them compared to the other ones that I have seen, elsewhere, in my life.