Precision seamless steel pipe manufacturer with R&D, production & sales. 50,000t annual output. Certified: national Class B license, ISO9001 & IATF16949. Intelligent lines: auto/semi-auto piercing, cold drawing, precision rolling, pickling & high-precision testing. We supply tubes for auto oil circuits & shock absorbers to top brands, as well as for boilers, machinery & petrochemical cracking. Offer oxygen-free bright annealed & shaped seamless pipes, OD 4-80mm, WT 0.5-13mm, meeting diverse needs.