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Durable Extruded Finned Tube for Heat Exchangers - High-Stability & Reliable Thermal Transfer. Patented Heterogeneous Welding: Exclusive technology for aluminum-steel and copper-steel bonding with 40% higher shear strength. Wide Customization Options: Customizable diameters, fin patterns, materials, and surface treatments like galvanizing or anodizing. Cost-Effective Materials: Aluminum-steel combinations reduce material costs by up to 60% while maintaining lightweight strength. Strict Quality Assurance: 100% ultrasonic/X-ray inspection, helium leak testing, and ISO 9001:2015 certified manufacturing. Flexible Manufacturing: Supports standard and custom orders with rapid prototyping and scalable production capacity.