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Reliable Supplier of Fasteners & Gaskets in China

API, CE, TUV, and ISO certified solutions for Oil & Gas, Marine, Mining, and Heavy Industry. Trusted by EPC companies and project contractors worldwide.

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About QISHINE

Xiamen Qishine Industry Co., Ltd. is a Chinese company established in 2013. We are a leading fabrication services provider in industries such as Oil & Gas, Petroleum, Marine, Oilfield, Mining, and Heavy Industry, specifically for pipeline construction and maintenance.

Qishine is the ideal choice for EPC companies and project contractors. Our company specializes in supplying a range of products including Fasteners, Flanges, Gaskets, Fittings, Valves, Pipes, and Piping Spare Parts. Our products are widely used on oil rigs, new nuclear power plants, chemical, and heavy industrial applications.

10+

Years of Experience

50+

Global Clients

Factory Equipment Industrial Components Precision Manufacturing Quality Inspection

Our Vision & Mission

Our Vision

To be a leading global pipeline product supplier and the most trusted partner for our clients in their construction projects.

Our Mission

To deliver exceptional service and superior quality products to our clients, supporting their projects' success through reliable, cost-effective pipeline solutions.

Our Products

High-performance, certified components for critical industrial applications.

ASTM A453 660A Bolt

ASTM A453 660A Bolt

  • Standard: DIN 976
  • Thread: 6G
  • Size: M76
  • Length: 780 mm
  • Material: ASTM A453 660A
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Full Thread Stud Bolt

Full Thread Stud Bolt

  • Type: Fully threaded
  • Material: High-strength steel
  • Standards: ASME, DIN, ISO
  • Diameter: M12 to M100
  • Finish: Zinc, Hot-dip galvanized
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ASME PTFE Gasket

ASME PTFE Gasket

  • Standard: ASME B16.21
  • Material: Polytetrafluoroethylene (PTFE)
  • Temp Range: -200°C to +260°C
  • Pressure: Up to 70 bar
  • Applications: Chemical, Pharma
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Spiral Wound Gasket

ASME B16.20 Spiral Wound Gasket

  • Standard: ASME B16.20
  • Core: Carbon steel, SS304, SS316
  • Filling: Graphite, PTFE
  • Ring Type: Inner & Outer
  • Class: 150 to 2500
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4 Inch Nut A194 7

  • Standard: ASTM A194 Grade 7
  • Size: 4 inches
  • Material: Alloy steel
  • Hardness: 32-45 HRC
  • Application: High-pressure flanges
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M12 Stainless Steel Nut

  • Size: M12
  • Material: SS304 / SS316
  • Standard: DIN 934, ISO 4032
  • Finish: Passivated
  • Corrosion Resistant: Yes
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ASME SA 194 2H Galvanized Nuts

  • Standard: ASME SA-194 Grade 2H
  • Finish: Hot-dip galvanized
  • Material: Carbon steel
  • Hardness: 24-32 HRC
  • Applications: Oil & Gas, Marine
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Carbon Steel Flange

  • Type: Weld Neck, Slip-on, Blind
  • Standard: ASME B16.5, B16.47
  • Class: 150# to 2500#
  • Material: A105, A350 LF2
  • Size: 1/2" to 72"
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Why Choose QISHINE?

Decade-long expertise, quality assurance, and client-focused solutions.

Quality & Certification

All products are API, CE, TUV, and ISO certified. Rigorous quality control ensures reliability in extreme environments.

Decade-Long Experience

Over 10 years of service in pipeline projects. Deep industry knowledge to anticipate client needs and deliver optimal solutions.

Cost Efficiency

Optimized supply chain and operations allow us to offer premium quality at competitive prices—maximizing your ROI.

10+

Years in Industry

500+

Projects Delivered

30+

Countries Served

99.8%

Client Satisfaction

Frequently Asked Questions

We serve Oil & Gas, Petroleum, Marine, Oilfield, Mining, Chemical, Nuclear Power, and Heavy Industry sectors, especially in pipeline construction and maintenance.
Yes. Our products are certified with API, CE, TUV, and ISO standards, ensuring compliance with international quality and safety regulations.
Absolutely. We offer custom fabrication based on client specifications, including size, material, and standards.
Lead time varies by order size and complexity, typically ranging from 15 to 45 days. We prioritize on-time delivery.

Get in Touch

Ready to start your project? Contact us today for expert support and premium solutions.

Contact Information

  • Phone: +86 592 5255 951
  • Email:
    amoslin@qishine.com
    bella@qishine.com
    info@qishine.com
  • Address: 318 Houhang Qianshe, Huli District, Xiamen, China

Connect With Us

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For inquiries, WhatsApp, or WeChat, please visit our official site to connect securely.

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