1. Made of copper, tin-plated on the surface, anti-oxidation, anti-corrosion, easy and quick installation. 2. With tin-plated anti-oxidation protection, the product performance is more stable, the connection is reliable, and the conductivity is strong. 3. Scope of application: widely used in household appliances, automobiles, electrical industry, mechanical equipment, power distribution cabinets, etc. 4. Working temperature: -55-105 degrees Celsius 5. Material: copper 6. Interface type: AC/DC 7. Product specifications: Tube-shaped bare end EN1508, suitable for wire diameter of 15 square millimeters, product length 8mm; Tube-shaped bare end EN2508, suitable for wire diameter of 25 square millimeters, product length of 08mm; Tube-shaped bare end EN4012, suitable for wire diameter 40 square millimeters, product length 12mm; Tube-shaped bare end EN6012, suitable for wire diameter 60 square millimeters, product length 12mm; Tube-shaped bare end EN10-12, suitable for wire diameter 10 square millimeters, product length 12mm; Tube-shaped bare end EN16-12, suitable for wire diameter of 16 square millimeters, product length of 12 mm; Tube-shaped bare end EN25-16, suitable for wire diameter of 25 square millimeters, product length of 16mm; Tube-shaped bare end EN35-16, suitable for wire diameter 35 square millimeters, product length 16mm; Tube-shaped bare end EN50-20, suitable for wire diameter 50 square millimeters, product length 20mm; Tube-shaped bare end EN70-20, suitable for wire diameter of 70 square millimeters, product length 20mm; 8. Product composition: Tube-shaped bare end EN1508 x 100 Tube-shaped bare end EN2508 x 100 Tube-shaped bare end EN4012 x 100 Tube-shaped bare end EN6012 x 50 Tube-shaped bare end EN10-12 x 50 Tube-shaped bare end EN16-12 x 35 Tube-shaped bare end EN25-16 x 35 Tube-shaped bare end EN35-16 x 20 Tube-shaped bare end EN50-20 x 15 Tube-shaped bare end EN70-20 x 15