Stainless steel welded pipes are produced by coiling steel strip or plate and welding with automatic machines. They feature high dimensional accuracy, excellent surface quality, and significant cost-effectiveness, making them the mainstream choice for large-diameter, thin-walled, and decorative applications.

Stainless steel seamless pipes are hollow tubular products manufactured by piercing a solid billet followed by hot rolling or cold drawing, resulting in a continuous structure without any weld seam. They represent one of the most reliable and versatile pipe types in piping systems, and are particularly suitable for critical processes involving high pressure, high temperature, or corrosive media.