Spiral welded pipe: is a low carbon carbon structural steel or low alloy structural steel steel strip according to a certain angle of the helix (called the forming angle) rolled into a billet, and then the pipe seam welded together to make, it can be a narrower strip to produce a large diameter steel pipe.

Galvanized steel pipe is a steel pipe that is coated with a zinc layer on the surface of an ordinary steel pipe. 

Galvanized pipe steel is welded pipes with a zinc coating to prevent rust and corrosion.

Open at both ends and has a hollow concentric section, its length and the perimeter of the larger steel.

A53 seamless steel pipe is an American standard steel pipe that is divided into two types: A53A and A53B.Among them, A53-A is equivalent to China’s 10# steel, A53-B is equivalent to China’s 20# steel, and A53-F is equivalent to China’s q235 material. 

A53 galvanized steel pipe is a steel pipe product commonly used in industry and construction.