One-stop solution for oil&gas pipeline
Trusted Pipe Supplier for the Oil & Gas Industry Globally Delivered, Quality Assured
Carbon Pipe&Tube for the Oil & Gas Industry
Built to perform in corrosive and high-pressure oil & gas systems, our carbon steel pipes offer smooth flow, excellent resistance to sour media, and dependable performance in both onshore and offshore applications.
Stainless Steel Pipe & Tube for the Oil & Gas Industry
Engineered to withstand extreme pressure, temperature, and corrosive media, our stainless steel pipes are ideal for offshore platforms, buried pipelines, and sour service conditions. They comply with API and ASME standards, offering exceptional stress corrosion resistance and long service life in critical oil & gas infrastructure.
Finned tubes for the Oil & Gas Industry
Tailored for oil & gas thermal systems, our finned tubes support enhanced heat recovery in glycol reboilers, process gas heaters, and crude stabilization units. They are built to withstand H₂S, CO₂, chlorides, and high cycling stress — meeting ASME and API material standards.
Flanges for the Oil & Gas Industry
Our precision-engineered flanges ensure leak-tight connections and pressure integrity in demanding oil & gas applications. Compliant with ASME B16.5, B16.47, and API 6A standards, they are designed to withstand extreme pressures, corrosive media such as H₂S and CO₂, and harsh offshore or cryogenic conditions — providing long-term reliability for pipelines, pressure vessels, and process equipment.
Oil&Gas Industry Market Research Reports
Regular updates on industry market insights — empowering our clients to capture opportunities and succeed.
Dedicated Support for Seamless Integration
Accurate ordering
Accurately and clearly, we input all order details, including the customer's special requirements, into our internal system to prevent any errors after production is scheduled.
Production Control
Each order is assigned a unique tracking number to ensure meticulous management, with every stage strictly recorded and signed for full traceability. Comprehensive inspections, including HT, ET, UT, RT, and PT, are conducted to guarantee superior performance and quality.
After-sales service
Responsive After-Sales Service, Offering Free Exchange or Replenishment of Your Stainless Steel Tubes to Ensure High-Quality Heat Exchanger Installation and Timely Order Fulfillment.
Technical Support
Technical support is provided promptly via phone, email, and online chat to efficiently address your technical issues and inquiries.
Company News
How to Accurately Measure Pipe Wall Thickness
In the manufacturing and inspection of metal pipes—whether stainless steel, carbon steel, or alloy—the wall thickness is a key dimensional parameter. Precise wall thickness affects mechanical strength, pressure resistance, and long-term reliability, especially in critical applications such as heat exchangers, boilers, and petrochemical piping systems. One of the most accurate methods for determining wall thickness […]
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Emergency Heat Exchanger Tube Replacement with TÜV
Emergency Heat Exchanger Tube Replacement with TÜV Third-Party Inspection In heat exchanger projects, a tube quality issue can create more than a material problem. It can quickly become a trust problem between the equipment manufacturer and the end user. Recently, one heat exchanger manufacturer contacted DLSS after tubes purchased from another source failed to meet […]
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Can Stainless Steel Seamless Pipes Leak? Causes,
Stainless steel seamless pipes are widely used in heat exchangers, boilers, condensers, pressure piping, petrochemical plants, power generation, shipbuilding, and other demanding industrial systems. For heat exchanger and condenser projects, buyers often prefer stainless steel seamless heat exchanger tubes because they offer better pressure resistance, dimensional stability, and corrosion performance. A common question from engineers, […]
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How to Select the Right Stainless Steel
Introduction Corrosive environments are among the most demanding settings for stainless steel tubing. Choosing the wrong grade can lead to pitting, cracking, or total system failure—costing both time and money. This practical guide from DLSS helps engineers and procurement specialists select the most appropriate stainless steel tube for various corrosive conditions, including chlorides, acids, marine […]
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