Positioning column, also known as spring plunger, ejector pin, spring positioning column. A positioning part composed of a body, a spring, and a pin uses the pressure of the spring to push the pin to make the equipment or product run smoothly. The body is made of steel and stainless steel. Some products are equipped with anti-dropping and anti-loose. The pins are made of metal and plastic materials. They are usually locked with special wrenches. They are widely used in machinery, molds, equipment, home appliances, furniture, etc.

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