A double arm street light pole is a type of outdoor lighting infrastructure designed to support multiple light fixtures for illuminating roads, streets, pathways, parking lots, and other public spaces. 

Channel steel is a long strip of steel with a groove-shaped cross-section. It is a carbon structural steel used in construction and machinery. It is a profile steel with a complex cross-section and has a groove-shaped cross-section. Channel steel is mainly used in building structures, curtain wall engineering, mechanical equipment and vehicle manufacturing.

Flange usually refers to a few fixed holes opened around a disk-like metal body for connecting other things widely used in machinery.

A 3-legged angle steel telecom tower is a specialized structure widely used in telecommunications for supporting antennas, microwave transmission, and other communication equipment. These towers are known for their stability, durability, and customization options.

A 35-meter antenna and microwave monopole tower is a specialized structure used in the telecommunication industry to support antennas, microwave dishes, and other communication equipment for transmitting and receiving signals over long distances. These towers are typically constructed as single-pole structures with a height of 35 meters to accommodate the required equipment for wireless communication, microwave links, and other telecommunication applications.

Roof-top tower means a tower that is based on a rooftop or similar such structure, rather than on the ground. It can save materials for building a teleccom tower and usually have a larger range of data cover. 

Utility electric poles play a critical role in supporting essential utilities and services, providing a framework for the distribution of electricity, communication signals, and lighting in various urban and rural settings.

Bow shackles are widely used in various industries such as electric power, metallurgy, petroleum, machinery, railways, chemical industry, ports, mining, and construction.