Products

ERW Square Steel Tube is a high-frequency welded steel tube manufactured from hot-rolled steel strip through roll forming, ERW welding, sizing and straightening. Rongheng supplies square steel pipes in multiple sizes, wall thicknesses and steel grades for construction, steel structures, machinery and infrastructure projects. Black and galvanized surfaces, fixed lengths, custom dimensions and inspection options are available for bulk orders and engineering applications.

Rongheng supplies ERW Round Steel Pipe manufactured by high-frequency induction welding, with fast forming, accurate welding and stable mechanical performance. It is available in multiple diameters, wall thicknesses and steel grades for construction, machinery, steel structures, HVAC, automotive parts and municipal projects, with non-standard sizes and further processing available.