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Electronic packaging
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   Technical persons in SYPI Co., Ltd have many years of 

experience in PCB/PCBA analysis and UL certification, 

accumulated a large number of actual cases. They can 

provide various solutions for customs in different stages, 

including research, certification, production, and customer 

complaints, help customs to solve problems  quickly, and 

grab the market opportunities.


Theoverall structure and Solder ball defect of circuit board: