With is galvanized springboard, why the price gap so big
With is galvanized springboard , why the price gap so big With the increase of the construction enterprise qualification, a kind of hot galvanizing as raw material to manufacture the springboard to replace the previous carbon steel plate, bamboo board and brush paint in molding machine under pressure out of commodity called hot dip galvanized steel springboard, that is what we call a scaffold board. Zinc and iron exist at the same time, the first zinc oxide in the air, thus protecting the iron. Zinc consumption to have no, iron began to oxidize, you brush a layer of black paint from the appearance, basically is to see less. Hot dip galvanized surface is dark than cold galvanized surface. Do you use for a long time can tell, hot dip galvanized known as electric galvanized. Cold galvanizing will rust quickly, and galvanizing. Hot dip galvanizing is a chemical treatment, belongs to the electrochemical reaction. Cold galvanizing is physical treatment, only in the brush a layer of ...