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Contact SupplierOne side perforation on the surfaces of noise barrier reduces reverberant build-up between parallel barriers and other reflective surfaces and increase the ability of noise barrier to reduce the noise. Glossy & plane outer side gives asthetic look to noise barrier and block maximum noise to passes in near by area. Our designed & manufactured noise barrier has delivered good results in many projects and performed as well. Our Metallic Noise Barrier Absorptive Panels achieved a minimum sound insulation of STC 25 and high sound absorption in between 125 Hz to 4,000Hz frequencies.