As an established seamless steel tube manufacturer with 21 years of specialized experience, Tenjan produces GB/T 3639 precision seamless steel tubes that represent the pinnacle of cold-drawn and cold-rolled manufacturing technology. Our precision cold-finished tubes are engineered for applications demanding exceptional dimensional accuracy, superior surface quality, and consistent mechanical properties, serving global clients in hydraulic systems, precision machinery, and automotive manufacturing with cost-effective solutions that rival international standards in quality and performance.
As an established seamless steel tube manufacturer with 21 years of specialized experience, Tenjan produces GB/T 3639 precision seamless steel tubes that represent the pinnacle of cold-drawn and cold-rolled manufacturing technology. Our precision cold-finished tubes are engineered for applications demanding exceptional dimensional accuracy, superior surface quality, and consistent mechanical properties, serving global clients in hydraulic systems, precision machinery, and automotive manufacturing with cost-effective solutions that rival international standards in quality and performance.
DIN 17175 seamless steel tubes represent the German standard for heat-resistant seamless steel tubes designed specifically for elevated temperature service conditions. These precision-engineered tubes are manufactured to withstand demanding high-temperature environments while maintaining structural integrity and performance reliability. As specialists in col
View product →
At Tenjan, we transform the European standard EN 10297-1 into tailored seamless steel tube solutions that precisely match your mechanical application requirements. With over 21 years of specialized experience and a dedicated R&D team boasting 30 years of technical expertise, we go beyond standard specifications to deliver custom-engineered tubes that optimiz
View product →
At Tenjan, we specialize in manufacturing EN 10305-1 precision steel tubes that meet the rigorous European standard for cold-drawn seamless tubing. Our precision-engineered tubes are manufactured through advanced cold-drawing processes to deliver exceptional dimensional accuracy, superior surface quality, and consistent mechanical properties. Designed for ap
View product →
As a specialized seamless steel tube manufacturer with over two decades of expertise, Tenjan produces GB/T 3087 seamless steel tubes that meet China's national standard for low and medium pressure boiler applications while ensuring full compatibility with international specifications.
View product →Tell us the material grade, outer diameter, wall thickness, quantity and end-use requirements.
Contact Our Team