The square tube fence is also called zinc steel guardrail. It is made of different sizes of square tubes as beams, slats and columns. The top of the bar is designed with a sharp end to increase the safety of the guardrail. The surface is designed with zinc plating, plastic spraying or plastic dipping to increase the corrosion resistance of the guardrail.

Small square tube fence is strong and beautiful, suitable for garden fence, commercial fence and residential courtyard fence. It is widely used in many fields, such as garden fence, isolation fence, road isolation fence, community fence, site fence, building fence and Development Zone fence.