Nail is the exterior wall insulation special anchors, galvanized screws, nylon expander and fised wafer form. According to the different thchness of insulation layer, is divided into a variety of specifications. Widely used in building decoration. Factory production of thermal insulation in housing insulaiton nails are widely used. With anti-aging, anti temperature changes, corrosion, cold heat; high capacity, high perssure, good tensile strength; loaded is not essy to deformation, moisture, reduce vibration and absorb noexe and sound insulation and so on. Easy to install and hammering can be, no special installation tools. Galvanized screws to solve the corrosion problem well, durability, and performance of nylon low heat, no cold bridge in winter, energy efficient.