The product number is DLD-055.
The bottom row of the picture, the second one on the right.
There is no information about patents. If you want to imitate them, there must be a way to avoid it.
Yangzhou Taiji Industry and Trade Co., Ltd. is located in Ji Guo Industrial Park in the northern suburb of Yangzhou, a famous historical and cultural city in China. Our factory covers an area of more than 4,000 square meters, with a building area of 1000 square meters and fixed assets and working capital of * * *160,000 yuan. The factory owns 15m× 1200t large bending machine, supporting high-speed slitting machine, punching machine, lathe, planer, semi-automatic submerged arc welding machine, welding flaw detection equipment, plasma cutting machine, sewing machine, straightener, and all kinds of necessary machinery suitable for manufacturing steel structure tapered street lamps, lamp poles, small and medium-sized poles, traffic sign poles, communication poles, etc. Enterprises pay attention to the recruitment, use and training of talents: there are more than 80 employees, including 8 senior engineers specializing in the research and production of light poles and lamps.
This is a passage from their home page.
It seems that the designer of this enterprise has aviation fans. You can see the shadows of F 16, F22, Su30, Korean T50 trainer, Predator, L8, Global Hawk and Heron II from the lamp holder.