Since the 1990s, China's hardware industry has maintained a high-speed development trend. After more than a decade of accumulation and steady growth, it has become an important hardware product country in the world and the world's largest producer.
"This is the wrench used to tighten screws in the past. The screws used to be square screws, but now they are all hexagonal screws, so such wrenches are no longer available in the market," said Wang Zhiying, 67, to reporters.