40+ Production Lines | 100% Commitment to Stainless Steel Quality
- Over 30 Years of Manufacturing Experience in Stainless Steel Industry
- Specialized in Heat Exchanger, Exhaust & Boiler Tubing Systems
- End-to-End Quality Control and Global Project Support
DLSS by Numbers: Precision, Efficiency & Trust
Automated Factories with Advanced Pipe Production Lines
Global Payment Options for Stainless Steel Exports
Heat Exchanger Manufacturers Using DLSS Pipes & Tubing
Tailor-Made Pipework & Fittings Solutions Completed
Choose Your Competitive Product , Now!
Compared to most suppliers, DLSS focuses exclusively on manufacturing high-quality stainless steel pipes, tubing, and fittings — providing competitive advantages, precision customization, and globally recognized certifications.
Product Cases
ASTM B466 C70600 (O60) Seamless Pipe
ASTM B466 C70600 (O60) seamless copper-nickel pipe, size 88.9×5.49×3000 mm. CuNi...
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ASTM B407 Alloy 800H (UNS N08810)
ASTM B407 Alloy 800H (UNS N08810) seamless pipe, size 50.8×5.16×6096 mm (20FT). ...
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ASTM B466 C70600 (O60) Seamless Pipe
ASTM B466 C70600 (O60) seamless pipe, size 42.16×4.0×6000 mm, 100% Eddy Current ...
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ASTM B729 Alloy 20 (UNS N08020)
ASTM B729 Alloy 20 (UNS N08020) seamless pipe, size 101.6×16.15×2616.2 mm. Heavy...
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are you
A Distributor or Wholesaler?
Are You
an Engineer, Procurement Specialist, or Manufacturer?
Special for Broker
If you have connections with professionals in the heat exchanger, boiler, or industrial manufacturing industries.
We invite you to become a valuable partner with DLSS.
Welcome To DLSS Family — Your Reliable Stainless Steel Pipe Partner
At DLSS, we don’t just manufacture stainless steel pipes — we deliver trust, precision, and performance.
For over 30 years, our seamless and welded stainless steel tubes have powered heat exchangers, boilers, and process systems worldwide.
We believe every project deserves timely delivery, stable quality, and transparent communication.
With 40+ advanced production lines and flexible customization options, DLSS keeps your operations efficient, reliable, and ahead of schedule.
When you partner with DLSS, you gain more than a supplier — you gain a long-term partner dedicated to your success.
DLSS One-Stop Service for Stainless Steel Pipes & Tubing
Save Worry, Save Time, Save Cost — From Design to Delivery
Understand your market and project needs precisely
Innovate high-performance stainless steel pipes & tubing
Offer flexible and competitive pricing for custom solutions
Ensure top quality to strengthen your brand reputation
Deliver efficient, reliable, and traceable solutions
Build long-term partnerships and market advantages
DLSS Certification
ISO Series：ISO 9001, ISO 18001, ISO 14001
Classification Society Series：ABS, DNV.GL, BV, LR, NK, CCS
Other Certification：PED, AD2000, API, TS, CRN NO etc.
DLSS Partners
DLSS offers outstanding quality at competitive prices. Their products provide excellent value for money, making them the best choice for businesses looking for cost-effective yet high-performance stainless steel solutions.
John D.*
Working with DLSS has been a seamless experience. Their ability to deliver on time, even for large-scale orders, has helped us maintain smooth operations without any delays. We highly appreciate their professionalism and reliability.
Michael S.*
What sets DLSS apart is their exceptional after-sales support. Whenever we have inquiries or need assistance, their team is always responsive and helpful. This level of service gives us great confidence in their products.
Emily R.*
Our Sustainability Efforts for the Next Generation
Environmental protection treatment
Eco-Friendly Manufacturing
Clean Energy
Durable Products
Our Mission
At DLSS, we turn stainless steel into strength and reliability.
Our mission is to innovate with precision, integrate global expertise, and provide smarter stainless steel pipe and tubing solutions for industries that power the world.
Through continuous R&D, we improve corrosion resistance, manufacturing accuracy, and sustainability — ensuring every heat exchanger tube, seamless pipe, and fitting meets the highest international standards.
We don’t just make products; we create value. By understanding our customers’ real-world challenges, we help them reduce risks, save costs, and achieve long-term success.
At DLSS, we lead with knowledge, act with integrity, and deliver results that truly matter.
Company News
Stainless Steel Tube Selection for LNG
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Stainless Steel Tubes for Desalination Plants:
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Different Types of Finned Tubes and
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Global Heat Exchanger Tube Standards Explained:
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