Including flat head (removable)

Fully pull out 1.2m, fully shrink 18cm, 10 knots, external diameter 1cm, length of the first tube 14cm

The screws of antenna and flat head are M4.

Flat head round hole 3.2mm, no thread.

The joint and 9 joints are made of copper, and the smallest joint on the top is made of iron (steel).

(The thin ones are usually made of iron, but the copper is not hard enough. The Desheng PL600 radio also has a section made of iron.)

Conventional quality products are neither too good nor too bad. At present, the most popular quality level in the electronic market.