In a word, wool from glass is glass wool, wool from rock is rock wool.

galvanized steel spiral duct description

pu pre-insulated spiral steel pipe Designed for transporting the liquid or gaseous fludis for cold and hot temperatures. Because it is high quality, workmanship, safety and durability, it is a good choice for the pipe system used in chemical industry, food industry, cold industry and so on.

The glass wool is a silk-like material made by fiberizing melted glass and then coating with thermosetting resin through centrifugal blowing process. By means of thermal setting, this material can be further process into series of products for multi-purpose uses, such as glass wool board, blanket, fiber glass air-conditioning duct and so on.

High-strength rock wool board has high mechanical strength. It is suitable for building insulation --- ROOFS and FACADES, COLOR STEEL SANDWICH PANELS and other applications requiring high mechanical strength.