Perforated metal is also used as sound barrier wall for viaduct, highways, high-speed rail, urban rail transport, factories, residential quarters, etc , playing an acoustic noise reduction purposes. Perforated metal has better acoustic noise reduction than ordinary PC board, meanwhile improved anti-aging, corrosion and impact resistance, providing 15 - 20 years of quality assurance.
Material: Cold plate (can be used for after painted treatment), galvanized plate, color coated steel plate , stainless steel plate , aluminum plate
Common hole shape: oval holes straight, square holes straight, round holes.