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◆ Tenjan – Your Trusted Partner for Custom Seamless Alloy Steel Pipes
Scenario-based precision customization: Tailor-made round steel materials, mechanical properties, dimensional accuracy, and shapes to your exact needs—fully compliant with ASTM , DIN/EN , JIS , GOST and other international standards.
◆ Tenjan – 21 Years of Expertise in Custom Seamless Carbon Steel Pipes
Integrated large-scale production from raw material customization to finished pipes, with full in-house quality control—no outsourcing.
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