China is producing cheapest wholesale products. You can get any item ranging from a cup to a computer from China wholesale market.
The main reason for that is China enjoys large population. Most factories are labor intensive industries. Compared to many other countries, labor costs are lower.
Many consumers testify the quality of goods according to their price. However, if you make a comparison between the same kind of products with the same quality produced in China and other countries, you will find the real reason for the popularity of "MADE IN CHINA"
Many high-end commodity producers have set up factories in China to cut off their costs. In fact, what you purchase are also MADE IN CHINA, but they are with labels, and you never think they are unqualified.
What I want to tell you is that no matter the goods made in China are labeled or not, they are with top quality.