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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.

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
Understanding EN 10204 3.1 vs 3.2: Certification
Meta Description:Learn the key differences between EN 10204 3.1 and 3.2 material certificates for stainless steel tubes. Understand which certificate your project needs and how DLSS ensures compliance. Introduction Material certification is essential for traceability and quality assurance in the supply of stainless steel tubes, especially in industries like oil & gas, power generation, and […]
Read MoreHygienic Stainless Steel Heat Exchanger Tube Requirements
In the food and pharmaceutical industries, cleanliness is not optional—it’s mandatory. Heat exchangers in these sectors are integral to pasteurization, sterilization, CIP (clean-in-place) loops, and product temperature control. That’s why the choice of tubing is critical. Sanitary-grade stainless steel tubes ensure both product safety and regulatory compliance, while also withstanding the harsh cleaning agents and […]
Read MoreHow to Pass 3.2 Certification for Heat
Introduction For heat exchanger projects in industries like oil & gas, power generation, and refineries, third-party certification is often non-negotiable. One of the highest levels of documentation is the EN 10204 3.2 certificate, which proves that material, testing, and inspection are approved by an independent authority—often required by EPC clients or government contracts. This guide […]
Read MoreApplications of Stainless Steel Seamless Pipes in
Introduction In the global steel market, stainless steel seamless pipes are projected to grow from USD 3.88 B in 2025 to USD 5.15 B by 2030, driven largely by demand in the oil and gas sector linkedin.com+1gerabnationalenterprises.com+1marketsandmarkets.com+4globenewswire.com+4marketsandmarkets.com+4. Their unmatched resistance to high pressure, corrosion, and temperature make them essential across the entire petroleum value chain. 1. Upstream: Drilling, Wellheads […]
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