intercom knob

The intercom knob is one of the important parts of the intercom. It is used to adjust the volume, channel, encoding and other functions. The materials of walkie-talkie knobs generally include the following:

Plastic: Plastic knobs are a common type. They have the advantages of being light, cheap, and easy to shape, but they also have the disadvantages of being easy to wear, aging, and not resistant to high temperatures. The surface of plastic knobs is often textured or grooved to increase friction and aesthetics. There are many types of plastic knobs, such as ABS, PC, POM, PA, etc. Different plastics have different properties and uses.

Metal: Metal knob is a high-end knob. It has the advantages of strength, durability, high temperature resistance, and anti-static. However, it also has the disadvantages of heavy weight, high cost, and easy to rust. The surface of metal knobs is usually plated or spray-coated to improve corrosion protection and aesthetics. There are many types of metal knobs, such as aluminum alloy, stainless steel, copper, zinc alloy, etc. Different metals have different properties and uses.

Rubber: Rubber knob is a soft knob. It has the advantages of anti-slip, waterproof, shockproof, etc., but it also has the disadvantages of being easy to deform and easy to stick to dust. Rubber knobs often have raised or indented surfaces to increase friction and aesthetics. There are many types of rubber knobs, such as silicone, NBR, EPDM, etc. Different rubbers have different properties and uses.

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