Welcome to Changzhou Tenjan Steel Tube Co., Ltd
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As a specialized seamless steel tube manufacturer with 21 years of industry expertise, Tenjan produces GOST 8733 seamless steel tubes that meet the Russian national standard for cold-deformed seamless steel tubes while maintaining compatibility with international specifications.
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As a specialized seamless steel tube manufacturer with 21 years of industry expertise, Tenjan produces GB/T 3094 cold-drawn special-shaped steel tubes that represent the pinnacle of custom profile manufacturing. Our precision-shaped steel tubes are engineered through advanced cold-drawing technology to deliver exceptional dimensional accuracy, superior surface quality, and optimized mechanical properties for specialized structural applications. With our experienced 30-year R&D team, we provide global clients with custom cross-section solutions that combine innovative engineering with cost-effective manufacturing.
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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.
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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.
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As a specialized seamless steel tube manufacturer with 21 years of technical expertise, Tenjan produces GB/T 8163 seamless steel tubes that meet China's national standard for fluid conveyance applications while maintaining full compatibility with international specifications. Our fluid conveyance seamless tubes are engineered for reliable performance in transporting water, oil, gas, and steam under medium to low-pressure conditions, offering global clients a cost-effective solution without compromising quality or safety requirements.
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As a leading seamless steel tube manufacturer with over two decades of expertise, Tenjan produces GB/T 8162 seamless steel tubes that meet China's national standard for structural applications while maintaining full compatibility with major international specifications. Our structural seamless tubes are engineered to deliver reliable performance in construction frameworks, mechanical components, and industrial structures, offering global clients a cost-effective alternative without compromising quality or technical requirements.
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At Tenjan, we transform the European standard EN 10297-1 into tailored seamless steel tube solutions that precisely match your mechanical application requirements.
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At Tenjan, we specialize in manufacturing EN 10305-1 precision steel tubes that meet the rigorous European standard for cold-drawn seamless tubing.
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At Tenjan, we specialize in manufacturing JIS G3461 seamless steel tubes that set the benchmark for boiler and heat exchanger applications.
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At Tenjan, we specialize in manufacturing JIS G3441 alloy steel seamless tubes that meet the rigorous Japanese Industrial Standards for mechanical structural applications.
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JIS G3445 seamless steel tubes represent the Japanese Industrial Standard for carbon steel tubes specifically designed for machine structural purposes.
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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 cold-drawn manufacturing processes, Tenjan produces DIN 17175 tubes that deliver exceptional dimensional accuracy and surface quality for critical high-temperature applications across various industrial sectors.
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