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We're convinced that with joint initiatives, the business between us will bring us mutual benefits. We can easily guarantee you merchandise good quality and competitive rate for ASTM Stainless Steel Plate Flange,Stainless Steel 304 Pipe Flange,Stainless Steel 304 plate Flange,ASTM A182 F304 Plate Flanges,F304 Plate Flanges, President of our company, with whole staff, welcomes all buyers to visit our company and inspect. Let us cooperate hand in hand to make a good future.
ASTM Stainless Steel Plate Flange, Our staffs are adhering to the "Integrity-based and Interactive Development" spirit, and the tenet of "First-class Quality with Excellent Service". According to the needs of every customer, we provide customized & personalized services to help customers achieve their goals successfully. Welcome clients from home and abroad to call and inquire!

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    We are one of the Professional S32750 super duplex steel blind flanges manufacturers Exporter Pipeline products in China .Our company was established in 2000, the plant covers 550, 000 square meters and a construction area of 6,8,000square meters, existing 260 workers and 45 technicians. We have five branch factories which can supply the best quality pipes, tubes, fittings flanges and related accessories.
  • S32760 Super Duplex Steel Slip On Flange

    S32760 Super Duplex Steel Slip On Flange

    Longquan is a professional S32760 super duplex steel slip on flange manufacturer and supplier in China. Our main projects including stainless steel flanges, duplex steel flanges, super duplex steel flange, pipe fitting manufacturing and sales. We have produced S32760 super duplex steel slip on flange for many years, looking forward to reaching a long-term cooperative relationship with you.
  • S32760 Super Duplex Steel Blind Flanges

    S32760 Super Duplex Steel Blind Flanges

    Longquan is a professional S32760 super duplex steel blind flanges manufacturer and supplier in China. We have produced S32760 super duplex steel blind flanges for over 15 years, looking forward to reaching a long-term cooperative relationship with you.
  • S32750 Duplex Steel Flanges

    S32750 Duplex Steel Flanges

    Longquan is a professional S32750 duplex steel flanges manufacturer and supplier in China. Our main projects including stainless steel flanges, duplex steel flanges, super duplex steel flange, pipe fitting manufacturing and sales. We have produced S32750 duplex steel flanges for many years, looking forward to reaching a long-term cooperative relationship with you.
  • S32750 Super Duplex Steel Weld Neck Flanges

    S32750 Super Duplex Steel Weld Neck Flanges

    We are one of the Professional S32750 super duplex steel weld neck flanges manufacturers Exporter Pipeline products in China .Our company was established in 2000, the plant covers 550, 000 square meters and a construction area of 6,8,000square meters, existing 260 workers and 45 technicians. We have five branch factories which can supply the best quality pipes, tubes, fittings flanges and related accessories
  • 304 Stainless Steel Socket Weld Flanges

    304 Stainless Steel Socket Weld Flanges

    Longquan is a professional 304 stainless steel socket weld flanges manufacturer and supplier in China. Our main projects including stainless steel flanges, duplex steel flanges, super duplex steel flange, pipe fitting manufacturing and sales. We have produced 304 stainless steel socket weld flanges for many years, looking forward to reaching a long-term cooperative relationship with you.
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  • The key features and benefits of stainless steel flanges

    Stainless steel flanges are a type of pipe fitting used to connect pipes, valves, pumps, and other equipment in a piping system. They are typically made of stainless steel, which provides excellent corrosion resistance, durability, and strength.

  • How can duplex steel achieve "biphasic strength and toughness"?

    At present, Longquan Industrial has provided over 500,000 duplex steel flanges to more than 80 countries around the world, covering leading enterprises such as BP, Shell and petrochina.Longquan Industrial holds international certifications such as ASME U/U2, PED, and API 6A. It is equipped with a German SMS forging line and an American Niton spectrometer, achieving full traceability from raw materials to finished products. In the future, Longquan will continue to invest in the research and development of duplex steel materials, promoting the upgrading of flanges towards higher strength, lighter weight and greater intelligence.

  • The Features of Weld Neck Flanges for Piping Applications

    Weld neck flanges are an essential component in many piping systems. They provide a secure and leak-tight connection between pipes and other equipment, such as valves and pumps. Weld Neck Flanges are similar to slip-on flanges but have a neck that extends from the flange body. This neck welds the flange to the pipe, providing additional strength and support.

  • Stainless Steel Flange Rust Stain Treatment.

    Using acid pickling paste or spray to assist the rust part to be passivated to form chromium oxide film to restore its corrosion resistance. After pickling, it is very important to rinse properly with...

  • Duplex Steel Flanges Revolutionize Piping Systems with Enhanced Strength and Corrosion Resistance

    In a significant development for the piping industry, duplex steel flanges have emerged as a game-changer, offering exceptional strength and corrosion resistance for critical applications. The innovative use of duplex steel in flange manufacturing has the potential to revolutionize various industries, including oil and gas, chemical, maritime, and offshore.

  • What are Lap Joint Flanges?

    A lap joint flange is a type of flange that is used in piping systems. It is similar to other types of flanges, such as weld neck flanges and slip-on flanges, in that it connects pipes and other components. However, Lap Joint Flanges have a unique design that allows them to be easily disassembled and reassembled.

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