... 1)heat insulation 2)soundproof 3)waterproof 4)good acid and alkali resistance high usage roofSpecification: (mm)Width: ... tile: 1100*800Functions: heat insulation, soundproof, waterproof, good acid and alkali resistance, fireproof, high intensity, high usage Payment ... , Middle East, North America, Northern Europe, Oceania, South Asia, Southeast Asia, Western Europe acid and alkali resistance MGO roof