Telescopic listening needle

Telescopic Listening Needle(also known as a telescopic listening rod) is made of stainless steel material, which can be adjusted to any length. It is lightweight, can be placed in a tool kit, easy to carry, beautiful and elegant, and has a reasonable structure. The listening needle is equipped with a sound tube to listen to sound, making it an ideal tool for power plants, steel mills, petroleum, chemical, shipbuilding, water conservancy, pipeline engineering, and other departments. The principle of conduction can accurately determine the problem location. It is an ideal inspection tool for industries such as petroleum, chemical, petrochemical, power generation, metallurgy, mining, coal mining, machinery, etc. The aluminum bronze listening needle after processing has a tensile strength of over 25 degrees.