Commonly, high-speed rail sound barrier is commonly used 5754 aluminum plate and 5a03 aluminum alloy, which are with high strength and corrosion-resistant. On the other hand, the 5754 aluminum alloy can also be applied in the auto car industry. The 5754 and 5a03 alloy aluminum plate are the same as Al-Mg anti-rust alloy aluminum plate, with.. read more →