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Badges, these worn symbols, carry a rich historical significance.

Used to recognize exceptional achievements, contributions, or honors of individuals or groups.

This process can create simple embossed or recessed effects, resulting in a good metallic texture.

Modern rotary switches are evolving from simple mechanical control to integrating tactile feedback, voice control, and gesture recognition.

A rotary switch is an electrical switching component that controls the on/off switching of a circuit through a rotary motion.

Rotary switches are generally on by turning counter-clockwise.

It changes the resistance value within a certain range, and then there is a contact switch.

Rotary switches are mainly installed on liquid and gas pipelines to regulate the flow rate and pressure of liquids and gases.