Since the method of hot – dip galvanizing was developed by the French chemist Paul Jacques Malouin in 1742, and then improved almost a hundred years later by another Frenchman-Sorel, in the process little has changed dramatically.
…………………………………………………………………………………………………………. यो मुलुक सिंगापुर जस्तो बनिसकेको छैन मात्र राजनीतिक परिवर्तन...