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One of China's leading manufacturers of finned tubes, U-bend tubes, and high-precision steel products for heat exchangers, boilers, petrochemical, and energy industries.
Qinxin International was registered in Hong Kong since 2012. It is an enterprise specializing in manufacture, international trade, service, and investment.
We mainly supply metal products such as finned tubes, U-bend tubes, tubes and pipes, tube cutting and processing, pressure parts, and steel structures for industries including automotive, energy equipment (heat exchangers, air coolers, condensers, boilers), oil and gas, fluid power, mining, water, pharmacy, and food.
Our company provides one-stop service from core tubes to fin tube machines, including replacement accessories, ensuring high-quality, cost-efficient solutions for global clients.
We offer a comprehensive range of high-precision steel products for heat exchangers, boilers, petrochemical, and energy industries.
High-efficiency heat transfer solution with durable extrusion process. Ideal for air coolers and heat exchangers.
Secure fin attachment with excellent thermal conductivity and mechanical strength.
Designed for high turbulence and enhanced heat transfer in condensers and evaporators.
High-frequency welded helical fins for superior performance in gas turbines and refineries.
Direct current ERW finned tubes with high weld integrity and consistent performance.
Stud-welded pipes for enhanced surface area and durability in high-pressure environments.
Precision bent tubes for compact heat exchanger designs with tight radius control.
Seamless and welded precision pipes for hydraulic cylinders, piston rods, and critical applications.
Corrosion-resistant alloys for extreme environments in chemical and petrochemical industries.
We combine advanced technology, strict quality control, and customer-focused service to deliver reliable industrial solutions.
Our company has a complete and scientific quality management system. We are one of the best manufacturers of fin tubes and U-bend tubes in China.
From core tubes to fin tube machines and replacement accessories, we offer comprehensive industrial solutions.
Trusted by clients in energy, petrochemical, automotive, and pharmaceutical industries worldwide.
Stay updated with our latest product releases and industry insights.
ASME SA334 Gr.6 Tube, bright steel tube, heat exchanger tubes, low carbon steel tube.
Bright stainless tubes, SA213M TP316L, ideal for high-corrosion environments.
Core Tube: 25.40mm OD x 2.41mm, Fin Material: SB209 1060, Pitch: 10 fins/inch.
Material: SA516 Gr.70N, Client: BP Whiting Refinery, Precision-engineered.
Find answers to common inquiries about our products and services.
Get in touch for product inquiries, quotes, or technical support.
No.588, Tangqiao Town, Zhangjiagang City, Jiangsu Province, China
Fax: 0512-58977665
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