Square and rectangular steel tubes, referring to pipes with equal or unequal side lengths, are typically formed by rolling steel strips that have been processed. Generally, steel strips are uncoiled, flattened, rolled into circular tubes, then rolled into square shapes and cut to the desired length.

Usage Categories
Square and rectangular pipes are widely used in mechanical manufacturing, construction, metallurgical industry, agricultural vehicles, greenhouses, automotive industry, railways, highway guardrails, container frames, furniture, decoration, and steel structure fields.
For engineering construction, glass curtain walls, door and window decorations, steel structures, guardrails, machinery manufacturing, automotive manufacturing, home appliance production, shipbuilding, container manufacturing, electricity, agricultural construction, greenhouses, bicycle frames, motorcycle frames, shelving, fitness equipment, leisure and travel products, fire protection and brackets, and the construction industry.