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  • ABOUT US
  • PRODUCTS 
    • Steel pipe
    • Carbon steel
    • Stainless steel
    • Galvanized steel
    • Color coated steel
  • BLOG
  • CONTACT US
  • …  
    • HOME
    • ABOUT US
    • PRODUCTS 
      • Steel pipe
      • Carbon steel
      • Stainless steel
      • Galvanized steel
      • Color coated steel
    • BLOG
    • CONTACT US
    • HOME
    • ABOUT US
    • PRODUCTS 
      • Steel pipe
      • Carbon steel
      • Stainless steel
      • Galvanized steel
      • Color coated steel
    • BLOG
    • CONTACT US
    • …  
      • HOME
      • ABOUT US
      • PRODUCTS 
        • Steel pipe
        • Carbon steel
        • Stainless steel
        • Galvanized steel
        • Color coated steel
      • BLOG
      • CONTACT US

      Guowei ISO certified steel pipe manufacturer

      "We're a ISO certified steel pipe manufacturer with roots in China since2017. Our 100,000㎡ factory houses complete in-house production lines – from coil slitting to precision pipe welding. Every step is ISO-controlled: raw material traceability, real-time QC monitoring, and strict hydro testing. We welcome video factory tours anytime to witness our automated ERW mills and 30,000-ton monthly capacity. Unlike traders, we guarantee direct pricing & full technical support​​ with engineers on standby."

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      "Our ERW pipes deliver strength without compromise. Advanced high-frequency welding creates seam integrity rivaling seamless pipes , while smart sizing systems ensure perfect ovality. For harsh environments, we offer dual defense options: hot-dip galvanizing with extra corrosion resistance or alloy layers for extreme temperatures. From structural projects to oil transmission, these pipes undergo 3-stage inspections – eddy current scanning, ultrasonic flaw detection, and pressure endurance tests. Custom specifications? Submit drawings and get samples within 48 hours!"

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