TIANYUAN brand perlite insulation panel making machine ...
TIANYUAN brand perlite insulation panel making machine . What is raw materialPerlite? Expanded perlite is a natural acidic vitreous lava, nonmetallic minerals, including perlite, rosin and obsidian, all of which differ only in crystalline water content. Since it expands rapidly 4 to 30 times under high temperature conditions of 1000 to 1300 ...