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中文版English
  • Home
  • About us
    • Company Profile
    • Qualification certificate
    • Equipmen
  • Company news
  • Products
    • Φ22mm
    • Φ25mm
    • Φ28mm
    • Φ35mm
    • Φ38mm
    • Φ40mm
    • Φ45mm
    • Φ50mm
    • Φ53mm
    • Φ59mm
    • Φ66mm
  • Production processes
  • Quality assurance
  • Join us
  • Contact us