pipe fitting
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What Makes Our pipe fittings Stand Out for you?
Every product undergoes rigorous quality control and 100% nondestructive testing, ensuring defect-free products and minimizing risks.
Strictly control dimensional accuracy to ensure seamless connection, improve assembly efficiency and reduce leakage risks.
We provide competitive pricing without compromising on quality, offering excellent value for money in every product.
We offer quick response times and reliable delivery schedules to meet tight project timelines, enhancing your operational efficiency.
Product Cases
ASTM B729 Alloy 20 (UNS N08020)
ASTM B729 Alloy 20 (UNS N08020) seamless pipe, size 88.9×4.0×6000 mm, exported to Saudi Arabia. Excellent sulfuric acid and chloride resistance. Ideal for petrochemical, refinery, and offshore projects.
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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 wall thickness, bright annealed finish. Excellent sulfuric acid resistance, chloride SCC protection, and high-pressure service.
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ASTM A213 TP304 Bright Annealed Seamless
ASTM A213 TP304 seamless bright annealed tube, ∅19×2.0×12000mm, with 100% HT + 100% ET + 100% UT. High-quality stainless steel tube for oil refinery and heat exchanger applications.
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ASTM A358 CL1 TP321/TP321H Welded Pipe
ASTM A358 CL1 TP321/TP321H stainless steel welded pipe, 355.6×6.35×5970MM, pickled surface, 100% RT. Ideal for boilers, heat exchangers, petrochemical and refinery piping systems.
Read MoreDifferentiated Services: Precisely Meeting Your Business Needs
for Stockists
for End Users
for Traders
Fast Delivery
Efficient production and on-time delivery for your orders
Multiple Product Options
A wide range of seamless tubes to meet various project needs
Small Batch Logo Customization
Custom logos for small batch orders, enhancing your brand identity
Regional Pricing & Protection
Exclusive regional rights and strategic pricing to strengthen your market position
Cost-Effective Products
High-quality products at competitive prices to boost your margins
Flexible MOQ
Adaptable minimum order quantities to fit your business requirements
One-Stop Marketing Solutions
Boost your online image with a complete suite of product marketing visuals and videos
Fastest 7-Day Production Process
Delivery can be made within a minimum of 7 days based on your order size
Continuously upgraded packaging
We offer continuously upgraded packaging to ensure maximum protection and efficiency.
DLSS’s Core Principle: Never Leaving Problems For Clients
DLSS Partners
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If you have connections with professionals in the heat exchanger, boiler, or industrial manufacturing industries.
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Company News
How Stainless Steel Tubes Ensure Safety
Introduction South America’s growing energy demand is driving the expansion of both conventional and renewable power plants. Whether it’s a thermoelectric station in Brazil or a biomass facility in Chile, one common requirement persists: reliable, long-lasting piping systems. Stainless steel seamless tubes are essential in these operations, especially in heat recovery systems, boiler circuits, and […]
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Titanium vs Stainless Steel Tubes for
Titanium tubes and stainless steel tubes are both used as heat exchanger tubes in many industrial systems. But they are not used for the same working conditions. Titanium is often used in seawater, high chloride, desalination, and marine systems. Stainless steel is often used in general heat exchangers, boilers, power plants, chemical plants, and cost-sensitive […]
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How Green Buildings and HVAC Systems
With urban centers pushing for net-zero construction and energy-efficient design, HVAC systems—heating, ventilation, and air conditioning—have become the heart of green buildings. This shift is driving new demand for stainless steel heat exchanger tubes, used in chilled water systems, heat pumps, condenser units, and energy recovery modules. 1. Why Stainless Steel Is Replacing Copper and […]
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NACE MR0175 vs MR0103: What’s the
Introduction When sourcing stainless steel tubes for corrosive environments, especially those involving hydrogen sulfide (H₂S), two international standards are frequently cited: While both relate to sulfide stress cracking (SSC) resistance, they apply to different industries and conditions. Misinterpreting their scope can lead to rejected materials or premature failures. This article clarifies how these standards differ […]
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