... or humid air8).sound proof/insulation =a 90mm thick wall of noise volume of 43dB9).simpler and more modern ... the fields of building, railway, highway, water conservancy project, electric power, business, tourism and military use. The houses are all ... anti-corrosiveAdvantage:1)reduce transport costs2)better working environment3)wall can be recycled4)efficiency high,short-duration5)increase in ...