Medal quality storm risesAt the 2024 Paris Olympics, a global sporting even···
1. The black spot is mainly the workpiece in the clean and then by the dirt···
1. The surface of the coating is hazy visually, with a rough feeling, mainl···
Ta-C thin film is the abbreviation of Amorphous Tetrahedral Amorphous Carbo···
1. Similarities: both belong to the category of surface treatment, both thr···
