2021-06-03
Folk har været i stand til at ordne selvreflekterende fra oldtiden. I begyndelsen blev vand brugt som enspejl. From the Yin and Shang Dynasty to the Tang, Song, Yuan, Ming and Qing Dynasties, the spejl for self-reflecting evolved into a bronze spejl. The earlier glass spejls in China appeared in the Ming and Qing Dynasties. It was brought from Europe by missionaries who came to China. This European-style glass spejl has to go through tens of thousands of miles of sea roads and bumps all the way. Taking into account the fragility, the spejl surface is generally narrow and easy to carry; the spejl is mostly used for shaving and shaving, and the spejl surface is only enough to shadow the partial beard.Then, with the passage of time, the silver spejl used by most of us came into being. With the development of technology, the function of the spejl is only self-reflection, it is more intelligent and more humane. More functional, such as: anti-fog, watch time, measure temperature, watch TV, etc. The material of the spejl has also been upgraded from a silver spejl to an "environmental protection spejl". This spejl uses lead-free paint, which is a technical breakthrough of silver spejls. This kind of spejl is called a lead-free and copper-free spejl, also known as an "environmental protection spejl.