Ningbo Intelligent Stainless Steel Co.,Ltd. Is specialized in manufacturing seamless steel tube for years in order to provide high quality products for clients. WILLED seamless steel tube produced by our company is mostly exported to Europe, USA and other countries and regions. With quality control in every technical procedure, AOD and VOD fumace, advanced automatic steel rolling line, punching device, cold rolling and cold drawn, we manufacture steel tubes with high precision and smooth surface.