A nail is a device made of metal, a solid, shaped like a needle, nails, mostly made of steel is often used for the freeze or for different types of objects. The nail has 3 type, as follows:
1.The nail is made from special steel concrete nail of this type have a strong. Do not bend easily. The body of it is a small groove paving concrete The tip of the nail, which is designed in such a way that different
2.Wooden hammer a nail is made of galvanized steel wire rust Can be classified into many types to use
3.The nail is made of galvanized steel, zinc oxide nail head is big with rounded a curve slightly in order to help seize the zinc to the structure. Not easy to lose when zinc wind
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