Features: 1) Also known as hollow sheet or Kapron sheet (including dual-layer sheet and three-layer sheet)2) Manufactured using plastic polycarbonate 3) Light, transparent, impact-resistant, thermal-isolating, flame-retardant and durable 4) Internationally accepted building material5) Advantages unavailable from glass and Plexiglass6) Widely used in factory roofs and canopies, shops, gyms, greenhouses, flower sheds, public facilities, terminals, expressway, advertising and decoration