China : Most ordinary people could not ever imagine in their wildest dreams how many polymer derivatives they use in their daily lives. Those plastic-made items; such as, handle grips of coffee mugs, shirt buttons, MCB levers for the electrical industry, electro-mechanical gears and shafts inside cars, etc. are made using a production engineering technique known as injection molding. The most significant advantage of this method is that large quantities of exact replicas of any required ... Read more