With the high-speed development of mobile phone, electronics, communications industry, the PCB circuit board industry has grown up rapidly. However, facing fierce market price competition, more and more manufacturers monopolize the market by low prices for enhancing core competitiveness, though the PCB board material costs tend to be rising. Then we may doubt if the ultra-low prices are achieved by reducing the costs of materials and fabrication.But things can be solved if we can distinguish PCB board by ourselves. Would you like to tell me any tips?
I think the best way is to test.