16-100mm, diameter 1.6-4.2mm. Select for use high-quality high-carbon steel No. 45 manufacture , adopt the most advanced net to take the electric stove to quench the craft and first-class electroplating having color technology. Steel nail this use on top-grade to decorate , decoration , alloy Lu , cement mix wall , earth of structure regular extensively. Its characteristic: The cap is great, toughness is good , apt to pierce through, the color has no color , can also intersperse the regular thing after using.