What is good for removing oil from hardware parts? We all know that the surface of hardware parts will leave oil stains in the production process, such as drawing oil, punching oil, cutting oil, etc. . These stains are not cleaned up, which will directly
Since the beginning of China's reform and opening-up, facing the pressure of international and domestic competition, state leaders have been advocating the emancipation of the mind, the courage to innovate, the Green and sustainable development line,