Popular questions

How to judge insulator quality only by checking its appearance?

Though the main insulator quality can only by inspected by testing, however, when you don’t have facility, and still want to know how to know quality by appearance, how?

China environmental protection policy forces insulator factories close? Your suppliers are in them?

If you buy products from China, you may be influenced by the environment policy, price increases, late delivery, factories close? Then how to do business?

How can I send a “right” insulator enquiry to suppliers?

What is wrong with the insulator suppliers now? I send many enquiries, but no one reply me, why?