Negative ion fiber is a kind of fiber with the function of releasing negative ions. The negative ions released by the fiber have obvious effects on improving air quality and the environment, especially the health effect of negative ions on the human body.
E400 Manual Video Measuring Machine is a high accuracy none-contact measuring machine for product dimension check, can measure as much as 12 kinds of elements, such as: point, Line, circle, arc, distance, angle, flatness…