seamless tube
DLSS Save Your Time & Cost
What Makes Our seamless tubes
Stand Out for you?






Every product undergoes rigorous quality control and 100% nondestructive testing, ensuring defect-free products and minimizing risks.
Using state-of-the-art cold drawing and cold rolling technologies, we ensure precise dimensions, smooth surfaces, and excellent mechanical properties.
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.
DLSS seamless tube




Differentiated Services: Precisely Meeting Your Business Needs
Fast Delivery
Efficient production and on-time delivery for your orders
Cost-Effective Products
High-quality products at competitive prices to boost your margins
Multiple Product Options
A wide range of seamless tubes to meet various project needs
Flexible MOQ
Adaptable minimum order quantities to fit your business requirements
Small Batch Logo Customization
Custom logos for small batch orders, enhancing your brand identity
One-Stop Marketing Solutions
Boost your online image with a complete suite of product marketing visuals and videos
Regional Pricing & Protection
Exclusive regional rights and strategic pricing to strengthen your market position
Fastest 7-Day Production Process
Delivery can be made within a minimum of 7 days based on your order size
Are You Struggling With These
Typical seamless tube Problems?
Frustrated by poor quality and inconsistent dimensions?
DLSS ensures consistent dimensions and quality by strictly controlling pipe accuracy and conducting 100% inspections, preventing time and resource wastage.
Annoyed by cracks, porosity, and defects?
DLSS enforces strict quality control, with all products undergoing non-destructive testing to ensure defect-free and safe tubes, protecting the customer experience.
Frustrated by delayed deliveries?
DLSS has efficient production and supply chain management to ensure on-time delivery, even urgent orders can be completed on time, helping customers to advance their projects on time.
DLSS’s Core Principle: Never Leaving Problems For Clients
From Every Part of The tube…
We care about the quality of stainless steel tubes. That’s why we focus on every detail of every component to ensure durability, precision, and superior performance.

Ensures material accuracy and dimensional precision through chemical composition testing (verified by PMI and spectrometer) and size measurement (including OD, WT, length, and pipe end).

Ensures dimensional accuracy and proper fit through ring gauge testing.
Ensures strength and leak-proof performance under specified pressure conditions through hydrostatic testing.

Ensures detection of surface cracks and defects through Penetrant Testing (PT).


Ensures internal surface quality and detects internal defects through borescope (endoscope) inspection.

Ensures surface quality and detects external defects through external surface inspection.





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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.
Company News

3.2 Certificate, TPI inspection and delivery process description
Product Information: ASME SA179 Seamless U-tubes ∅19.05 × 2.11min × L12210.9~13617.8mm, Total: 1,352 pcs

Welded vs. Seamless Tubes: Which is Better for Heat Exchangers?
For many heat exchanger applications, seamless stainless steel tubes offer better strength, consistency, and reliability.
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Disadvantages of Copper Tubes in Heat Exchangers
Disadvantages of Copper Tubes in Heat Exchangers (and Why More Industries Are Switching to Stainless Steel)

Why Seamless Stainless Steel Tubes Are Ideal for Heat Exchanger Applications
If your project demands reliability under pressure, aggressive media, or extreme heat, seamless stainless steel tubes are your best bet.
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