PPGI steel coil is a special kind of steel that has a thin layer of paint and zinc on its surface. This makes it look colorful and shiny while also protecting it from rain, sun, and wind. Kunyu makes these steel coils with care, so they last a long time and keep buildings looking fresh. People use PPGI steel coil for roofs, walls, and other parts o

Aerogel powder is a material that is changing how people think about insulation. It looks almost like a dusty cloud, but it packs a punch when it comes to stopping heat from moving. This powder is very light and can fit into tiny spaces, making it perfect for things that need to stay warm or cool without getting heavy or bulky. Surnano, a company w