Cross arm clamps can be divided into straight cross arms and corner cross arms according to their purposes. If classified by material, they can be divided into iron cross arms, which are angle irons fixed horizontally at the top of power poles with porcelain vases on them to support overhead power lines. It is mainly used for installing insulators and lightning conductors to maintain a certain safe distance according to regulations. Widely used in the automotive industry and engineering machinery. In industries such as shipbuilding and refrigeration machinery, the value of cross arm clamps is also very small. The characteristics of cross arm clamps are significant, but their role is very important.