Noise performance up to 32 dB; light weight, high aesthetics, construction convenient than the traditional average of 2-3 dB Built of lightweight concrete panels, noise barriers such advantages weighted amount of noise; low-volume segment average of 3-5dB; surface density per square meter to reduce 10-12kg / square meter; more convenient for construction; noise reduction screen thickness 40-50mm, to some extent, saving the related materials. Efficient and environmentally friendly, "quiet pleasure" soundproof membrane for outdoor use only superior weather resistance, the product does not contain any toxic or harmful volatile compounds and any recycled material. The scope of products high-speed rail highways, urban roads industrial, corporate boundary of industrial equipment civilian equipment