China is a country that is considered the leading edge of mass production of different types of devices. Mass production allows you to maintain a strong and stable economy, therefore, production is continuous and without stopping. However, many of the companies outside of China, seek to produce mass but do not do so with the same effectiveness as this country.
The difference is not about the personnel applied, nor the studies achieved. China, always seeks to enter the forefront, and for this it seeks to obtain the most advanced machinery to be able to produce quickly and effectively.
Seeing this, we understand why a simple procedure that is normally delegated to humans can be accelerated in a gigantic way using the appropriate machinery.