As is known to all, there are many insulator manufacturers in China, it is about one thousand. Not only have many larger insulator manufacturer is known to all, more is you don't know the small insulator factory.

Some insulator factory in China is so small that it can only make insulators, but there was no corresponding testing equipment to ensure the quality.
You only know to find insulator factory when it's need to purchase insulator. But do you know: All insulator factories dare not to say they can produce all types of insulator. Because of insulator factory is a production of a particular kind of insulator.

You only know to find insulator factory when it's need to purchase insulator. But do you know: When you find the insulator manufacturer, they tell you they have, but you don't know the insulator you want they can't produce. They also need to buy from other factory. You believe the insulator factory you find, but you can't believe the outsourcing manufacturers.

There is more you don't know, do you want to know more about China insulator factory secret?
 

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