Feature●Size: M4●Inner Diameter x Outer Diameter x Thickness: 0.2 x 0.4 x 0.03 inches (4 x 10 x 0●Quantity: 80 sheets●Aluminum is lightweight, corrosion resistant, and heat dissipation resistant●Aluminum is 2.7 specific gravity and is about 30% lighter than steelDescription
The use of aluminum is excellent in light and heat dissipation, so it is used in a wide range of fields such as aerospace, automotive, precision machinery (lightweight, heat dissipation), medical and food.